The Imagin (イマジン, Imajin?) are a fictional race that serve as the antagonists in the Kamen Rider Series Kamen Rider Den-O. The name "Imagin" comes from several words in the English, Japanese, and even Arabic languages: "imagine" (イマジン, imajin?), "now" (今, ima?), "person" (人, jin?) and "djinn" (ジン, jin?).
The Imagin were designed by Yasushi Nirasawa (韮沢 靖, Nirasawa Yasushi?), who previously worked on the designs for the Undead in Kamen Rider Blade, the Horrors in GARO, and the Worms in Kamen Rider Kabuto. These designs are detailed in Imagin Works: Say Your Wish… (イマジンワークス SAY YOUR WISH…, Imajin Wākusu SAY YOUR WISH…?).
The Imagin are beings from a possible future who have lost their physical forms due to an event that erases their timeline, becoming dependent on existing through the memories of humans, though this event and timeline are not well explained. Led by Kai, they arrive to the year 2007 to find weak-hearted humans and through them go back in time to find the key figure to the Junction Point (分岐点の鍵, Bunkiten no Kagi?), and destroy him so their future can become a reality again. Imagin possess humans upon forging a contract, fashioning a physical form by searching through the host's memory for figures found in folklore and myths. In some cases of Imagin possession, a person's eyes change color to that of the Imagin, the hair altered into style with a streak of it also changed to the color of the Imagin. In some cases, even the host's attire changes to reflect the Imagin's personality. There are also rare Imagin showing the ability to split into two or more entities that can survive independent of each other. Normally, when this happens, there is a clear difference between them, ether physical or they'll have completely different personalities. Unlike most Kamen Rider villains, who normally have greedy or selfish motives for their actions, the Imagin attack the past due to self preservation, wanting to keep their race alive.
The hosts, recognized by the sands of time spilling from their bodies, are offered a single wish by the Imagin. In exchange, the Imagin is able to dive into the most treasured moment of the person's past. As displayed, however, the host must remember making the contract for the Imagin to successfully travel to the past. Additionally, due to the greatly delicate nature of the contract, if the contract holder forgets or dies before the contract is completed, the Imagin bound to him or her would fade out of existence. Opening the human like a door, a portal is revealed that leads to the appropriate time, severing their ties to the human in the process. From there, the Imagin takes over a host's body or simply manifests itself in its physical form and begins causing massive chaos. In turn, due to the laws of time, everything and everyone destroyed in the past no longer exists in the present. However, as Ryotaro learned in time, the restoration of these things rely on just being remembered. Also, if an alteration to the past prevents the contract from ever being made in the first place, the damage will be negated completely due to it never having happened, as was the case with the Ivy Imagin. However, it appears that should the Imagin have been destroyed in the past, its destruction is not undone.
A "Singularity Point" (特異点, Tokuiten?, gravitational singularity) in Kamen Rider Den-O is a human who has the ability to exist independent of time itself, and be unaffected by changes in their own past. This ability also allows them to suppress an Imagin's will when it takes over their body and is not tempted by the free wish an Imagin can grant. Because of this, the Imagin contracted to Singularity Points are usually unable to take a physical form in the present time, and directly possess their Singularity Point, instead. They usually reside within time itself and when they are not possessing their Singularity Point, they stay on some sort of Train of Time, such as the DenLiner or the ZeroLiner. The Singularity Points also have the ability to become Kamen Riders, and the Imagin that possess them lend their abilities in combat when called upon. In other instances, the Imagin use their Singularity Point's body as they wish when the Singularity Point loses consciousness. As long as the Singularity Point is conscious, he can expel the Imagin from his body and send it back to the Train of Time that he uses as a Kamen Rider.
The Rider Pass that Ryotaro Nogami uses to become Kamen Rider Den-O can summon at least four Imagin. Each of these Imagin gives Den-O their power when they are called upon with each form suiting to their fighting style. These Imagin are collectively known as the Tarōs (タロウズ, Tarōzu?) due to their namesakes. When not possessing Ryotaro, the Tarōs spend their time in the DenLiner's dining car. However, they are also able to enter physical time and space by possessing vacant forms, such as full-body costumes, although this leaves them physically unstable. The Imagin have also proven capable of possessing Ryotaro all at once after the creation of Climax Form, but outside of their transformed state, this 4-way possession is dangerously unstable and physically stressful for Ryotaro. Due to their nature as Imagin, they can sense evil Imagin near Ryotaro's vicinity and alert him likewise. In addition to powering up Den-O, the four are each armed with a weapon and each are able to perform their form of Den-O's finishing attack in their normal state.
When the Junction Point starts to form, the Tarōs start to lose sync with Ryotaro and are unable to possess him when he travels to the past. To continue to assist him, they create the DenKamen Sword, which allows him to channel their power without direct possession. Though Ryotaro is curious of these recent events, the four are reluctant to explain that it meant the future they came from is being erased, causing their kind to cease to exist as the result of their battle with the evil Imagin. In spite of it, however, the Tarōs intend to keep fighting to the end, gaining physical form within normal space-time as a result of each Imagin granting Ryotaro's wish that they fight together until the end. When the time does come and they fade away, it is revealed that the memories they made with Ryotaro have created a time lag, allowing them to maintain their existence as they take leave on the DenLiner.
Soon after, the four become members of the DenLiner Police (デンライナーポリス, Denrainā Porisu?), a newly-made law-enforcement group to prevent changes in the past by Imagin who also survived the Junction Point and form an army under Negataros. Because of their status as Imagin who fulfilled their contracts, the Tarōs are able to possess anyone as seen with Yuto, Wataru Kurenai, Tsukasa Kadoya, Yusuke Onodera, Natsumi Hikari, the Arms Monsters of Kamen Rider Kiva, G3, Ouja, Caucasus, Kotaro Nogami, and Ankh.
Momotaros (モモタロス, Momotarosu?) is the first Imagin that gives Ryotaro his power, which allows for the Sword Form transformation. He can also sense when an Imagin is rampaging in the city, subsequently alerting Ryotaro immediately. His natural weapon as an Imagin is a sword named the Momotarosword (モモタロスォード, Momotaroswōdo?). Momotaros blames Ryotaro for his Oni-like form, though it matches his personality, best described as hot blooded, arrogant, and comedic, serving as a foil to Ryotaro's own shy and cowardly personality. In fact, Momotaros is more interested in fighting than carrying out the Imagin's goal. Unfortunately, he is constantly beaten by Hana when he gets Ryotaro into trouble. When he possesses Ryotaro, declaring the words "Here I come!" (俺、参上!, Ore, sanjō!?),[1] Momotaros's own personality takes over, giving Ryotaro power, confidence, and a bit of his eagerness for a good fight. His eagerness is shown in battle, where he always declares the words, "I am, from start (to finish), at the climax!" (俺は最初から(最後まで)クライマックスだぜ!, Ore wa saisho kara (saigo made) kuraimakkusu da ze!?). Momotaros is also somewhat selfish, initially fighting alongside Ryotaro in order to ensure his own survival. Though he unknowingly places Ryotaro in unneeded danger to suit his fancy, Momotaros eventually learns to respect him and his desire to protect others. Though he demands respect, Momotaros is usually put in his place by Hana and her powerful punches. He also does not know how to swim, has a narcotic reaction to red peppers, and seems to be afraid of dogs. While he acts hostile and demeaning to the other Tarōs, he does care about them, proven by hiding his anguish while they are slowly disappearing due to the events of the Climax Scene. Momotaros is the base for Den-O's Climax Form, as he has control of the head and torso and can control the other sections that the other Tarōs usually have primary control of if need be. During the events of OOO, Den-O, All Riders: Let's Go Kamen Riders, Momotaros assumed both the forms of the Momotaken for New Den-O to use and then the Imagin Medal for Kamen Rider OOO to use to assume Tamashii Combo.
When insulting another Imagin, he usually calls them a "X-Jerk" (X野郎, X-yarō?) depending on the animal they are modeled after, or a shortened version. The other exceptions are Ryutaros, referred as "Brat" (小僧、ガキ, Kozō, Gaki?) or "Snot-nosed Brat" (ハナタレ小僧, Hanatare Kozō?), Deneb as "Tubby" (オデブ, Odebu?), and Teddy as "Tendon" (天丼?). Momotaros also refers to Hana as literally "Nosy Woman" (ハナクソ女, Hanakuso Onna?). He also puts emphasis on his final blow attacks, saying "My Finishing Attack, Part X" (俺の必殺技パートX, Ore no hissatsu waza pāto X?) while possessing Ryotaro in Den-O Sword Form, with a Part 1, 2, 2’ (Two-Dash), 3, and 5 (Ryotaro tells Momotaros that he skipped 4, but he considers not using 4 "cool", even counting from 1-10 while skipping 4). In his battle against Kamen Rider Gaoh, Den-O Sword Form swiped the Rider Pass over the Den-O Belt twice, initiating a doubled Full Charge for "My Finishing Attack, Special Edition" (俺の必殺技・特別編, Ore no hissatsu waza tokubetsu hen?). In his battle against the Alligator Imagin in Kamen Rider Decade, while empowered by Decade's Final AttackRide Card, Momotaros uses Kuuga Gouram and a DenGasher for his "My Finishing Attack, Decade Version" (俺の必殺技・ディケイドバージョン, Dikeido Bājon?). When performing his version of the attack in his physical form, he calls it "My Finishing Attack, Momotaros Version". His physical form is based on an oni and a peach and his DenLiner train features a dog, monkey, and bird, all of which are companions of Momotarō (桃太郎?) the Peach Boy. Ironically, the legend has Momotaros's namesake defeating evil oni, while Momotaros is based on an oni.
Momotaros is voiced by Toshihiko Seki (関 俊彦, Seki Toshihiko?). Seki was also known as the voice of Jotaro/Bleed Kaga in Future GPX Cyber Formula.
Urataros (ウラタロス, Uratarosu?) is the second Imagin that gives Ryotaro his power, allowing transformation into Den-O Rod Form. The form given to him by Ryotaro is turtle-like in appearance, with his weapon being the Uratarod (ウラタロッド, Urataroddo?), a rod with hexagonal blades at each end. Furthermore, Urataros was well-aware of Ryotaro being a Singularity Point, making his contract to him on purpose—though he says it is to evade the loneliness of being outside time, Hana later debunks this entirely. When he possesses Ryotaro, he usually states the words, "Hey, will you let me reel you in?" (お前、僕に釣られてみる?, Omae, boku ni tsuraretemiru??).[1]
He is also aware of the evil Imagin planning to destroy time, but simply does not want to commit it as in spite of his cool exterior, there's indication that he's somewhat of a coward and lies just for self preservation. Urataros is a casanova with a very convincing personality, owning the ability to convince almost anyone by speaking to them, with Ryotaro the only one who trusts him and lets him stay as he sees he has a good heart. Urataros, however, later says that he lies simply for the sake of lying ("One lie is more interesting than a thousand truths"), and seems quite irritated that Ryotaro is "trivializing his lies."
While Momotaros gets Ryotaro in trouble through reckless methods, Urataros puts Ryotaro in conflicting situations when he goes around wooing multiple women. Despite these negative traits, along with his occasional fights with Momotaros, Urataros does show genuine concern for Ryotaro's well being the best speaker of the Taros, possessing Ryotaro simply to get information out of someone, or to talk his way out of something. He is also useful in situations that require patience, something Momotaros severely lacks.
He usually refers to Momotaros as "Sempai" (先輩, Senpai?) and Kintaros as either "Bear" (クマ, Kuma?) or "Kin-chan" (キンちゃん, Kin-chan?) respectively. Urataros' physical form is based on that of a turtle and fishing rods are a common motif, both of which are aspects of the myth of Urashima Tarō (浦島太郎?), a fisherman who caught a turtle that led him to the castle of Ryūjin.
Urataros is voiced by Kōji Yusa (遊佐 浩二, Yusa Kōji?). Yusa was also known as the voice of Shadow the Hedgehog from Sonic X and The Sonic Games.
Kintaros (キンタロス, Kintarosu?) is the third Imagin that gives Ryotaro his power, which allows for the Ax Form transformation. He is vaguely modeled after a bear and has a Sumo wrestler-like personality. He also has a habit of deep sleeping (akin to hibernation) until the mere mentioning of any word that sounds remotely similar to the Japanese word for "to cry" (泣く, naku?) often provokes Kintaros out of his slumber to possess Ryotaro in an instant.
He speaks in a the dialect of Kansai-ben, saying, "My strength has made you cry. Wipe your tears with these!" (俺の強さに、お前が泣いた。涙はこれで拭いとけ, Ore no tsuyosa ni, omae ga naita. Namida wa kore de fuitoke?),[1] whenever he possesses Ryotaro, taking out a handkerchief for whoever wants to wipe their tears off with. His natural weapon as an Imagin is a giant battleaxe named the Kintaros Axe (キンタロスアックス, Kintarosu Akkusu?). He has a habit of popping his neck every time he begins and ends a battle, as well having "You cried" (泣けるで, Nakeru de?) as a battlecry.
Kintaros is a strong Imagin who constantly seeks opponents stronger than himself. Unfortunately, he is sometimes unable to control his own strength resulting in accidentally destroying things, which he attempts to fix afterward. He is also very selfless and had no intent to follow Kai's orders to alter time to begin with. At first, he is dependent on a retired karateka named Masaru Honjō, who gave him his "bearish" look, as he attempted to master karate so Masaru could achieve the "ultimate karate". Kintaros wants to teach Masaru the ultimate karate, in order to let him settle things with Kikuchi instead of disturbing the timestream.
Seeing the good side of Kintaros when he protects Masaru from the Rhino Imagin and being mortally wounded in doing so, Ryotaro allows Kintaros to enter a contract with him, saving the Imagin's life. Unlike the others, who had (at least partly) selfish intentions for assisting Ryotaro, Kintaros's motives for helping him are noble from the start, having a desire to repay Ryotaro for saving his life, stating so on several occasions.
He usually refers to Momotaros as "Peach" (桃の字, Momonoji?), mispronouncing his name as "Momonga" (モモンガ, Momonga?, Japanese Dwarf Flying Squirrel) and "Momohiki" (モモヒキ, Momohiki?, Long Underpants)}} and refers to Urataros as "Turtle" (亀の字, Kamenoji?). Kintaros' physical form, based on that of a strong golden bear, are aspects of the traditional myth of Kintarō (金太郎?) the Golden Boy, said to be strong enough to wrestle bears and demons.
Kintaros is voiced by Masaki Terasoma (てらそま まさき, Terasoma Masaki?). Terasoma was also known as the voice of Shadow Moon from the Kamen Rider Black series and has also voiced Daigo Hino from Smile PreCure!.
Ryutaros (リュウタロス, Ryūtarosu?) is the fourth Imagin that gives Ryotaro his power, which allows for the transformation into Den-O Gun Form. His natural weapon as an Imagin is a shotgun named the Ryuvolver (リュウボルバー, Ryūborubā?). Though he is the last Imagin to appear, Ryutaros initially possessed Ryotaro the moment that Urataros did, and simply hid himself from the others. Ryutaros reveals himself in his form when he is attracted by Naomi's coffee inside the DenLiner. Ryutaros is most childish in personality with a love for drawing and animals. Ryutaros also appears to enjoy break dancing, to the point to that it is incorporated into his flashy fighting style. His personality is one of a fun-loving dancer/disc jockey and is the most dominant Den-O has. This recklessness also causes the most collateral damage, as he fires his gun aimlessly.
When he possesses Ryotaro, he first asks "Mind if I…?" (…いい?, …Ii??, usually "Mind if I defeat you?" or "Mind if I end this?") followed by "I can't hear your answer" (答えは聞いてない, Kotae wa kiitenai?).[1] He has the ability to control people simply by snapping his fingers. This tactic works with summoning the Machine DenBird as well. Originally, Ryutaros possesses Ryotaro after being promised the title of become the DenLiner's conductor by Kai, who also gives the Imagin a ticket, on the condition that he destroys Ryotaro.
However, because he does not wish for Airi to cry, Ryutaros decides not to destroy Ryotaro. The only individual he will listen to is Airi, whom he affectionately calls "sis" (お姉ちゃん, onee-chan?, Ryotaro only calls her the more formal "sister" (姉さん, nee-san?)). Because he knows that Airi has loved Yuto Sakurai, and from faulty advice on love from Kintaros, he becomes jealous of Yuto and wishes to show that he is stronger than him. But when Kai takes matters in his own hands in killing him, combined with realizing how he and Airi can not to be together, Ryutaros matures a bit to cope with fading away while eventually mustering courage to fight in the final battle against Kai.
He usually refers to Urataros, Kintaros, Sieg, Teddy respectively as "Turtle-chan" (カメちゃん, Kame-chan?), "Bear-chan" (クマちゃん, Kuma-chan?), "Bird-san" (トリさん, Tori-san?), and "Blue Bear-chan" (青クマちゃん, Aoikuma-chan?). However, he excludes Momotaros as he is not based on an animal and Momotaros does not understand him like the others do. He is referred to by the others as "Ryuta" (リュウタ, Ryūta?). After this initial arrival on the DenLiner, he is rarely seen without a pair of headphones over his head.
One of the Tarōs, Ryutaros's basis is unclear as early promotional material stated his form to be based on the legend of Tatsu no Kotarō (Taro the Dragon Boy) while TV Asahi's website for Den-O states that his form is based on Ryotaro's mental image of dragons. Two of the Imagin Anime shorts bring up the topic of Ryutaros's possible namesake.
Ryutaros is voiced by Kenichi Suzumura (鈴村 健一, Suzumura Ken'ichi?). Suzumura was also known as the voice of Kouichi Kimura from Digimon Frontier.
Deneb (デネブ, Denebu?) is an Imagin fully contracted to Yuto Sakurai, gaining a physical form within normal spacetime due to Sakurai's wish for the Imagin to aid his past self as part of their contract. Rather than possessing him to travel into the past, Deneb willingly betrays Kai and possesses Sakurai in the middle of a fight after witnessing his desire to protect time as Zeronos. Deneb serves as Yuto's butler and fights alongside him while he is in Altair Form, able to fires bullets (or smoke pellets) out of his fingertips. He also provides Zeronos the ability to transform into Vega form. He carries around a basket that contains hand-made candies that have wrappers that bear his face called "Deneb Candy" (デネブキャンディー, Denebu Kyandī?). His personality is the polar opposite of Yuto's, with Deneb's noble demeanor usually resulting in embarrassing consequences done to Yuto, who comically beats him up for it. Although Yuto treats him with occasional disrespect; Deneb chooses to stand by his side out of friendship and loyalty, knowing Yuto to be a kind person. He also acts as a parental figure to Yuto, doing his best to make sure he lives healthy, including a need to serve shiitake to him, despite Yuto's deep hatred towards it (and usually resulting in a comical beating). Due to the fact he has a physical form in normal spacetime, Deneb often appears in (poorly constructed) disguises in order to avoid standing out.
Due to Deneb's limited interaction with the Tarōs, he does not have names for them. However, he has on one occasion called Kintaros "Kumagoro" (くまごろう, Kumagorō?) and Urataros as "Kametaros" (カメタロス, Kametarosu?). Deneb is also the only Imagin other than Ryutaros to call Momotaros by his actual name as opposed to a nickname. Deneb is also the only main Imagin who does not have his own catchphrase, although merchandise from Toei and Bandai often feature Deneb saying "Please take care of Yuto" (侑斗をよろしく, Yūto o yoroshiku?).[1] Upon transforming into Vega Form, Deneb often starts out with "Let me say this to start..." (最初に言っておく…, Saisho ni itte oku...?), followed by something honest. The first instance was "This face on my chest is just for show!" (胸の顔は飾りだぁっ!, Mune no kao wa kazari daa'!?). Deneb's physical form is based on the historical story of Benkei and the fictional Karasu-Tengu. He is also named after the star Deneb in the constellation Cygnus the Swan which is important in the legend of the Tanabata along with "Altair" and "Vega", the names of the two forms that Zeronos can initially access.
Deneb is voiced by Hōchū Ōtsuka (大塚 芳忠, Ōtsuka Hōchū?). Ōtsuka was also known as the voice of Jiraiya in Naruto.
Sieg (ジーク, Jīku?) is an Imagin who enables Den-O's transformation into Wing Form. He arrives in the current timeline six months prior to Ryotaro becoming Den-O, originally intending to forge a contract with a young wealthy pregnant woman named Shiori Takayama, but possesses her unborn son in the process. After the child is born and subsequently kidnapped, Sieg comes into being and seeks to reunite his "brother" with their "mother", crossing paths with Ryutaros and gaining access to the DenLiner. Due to his "privileged" upbringing and his already princely mannerisms, Sieg becomes easily infuriated when treated with disrespect. Because he is "born" in 2007, he also possesses extraordinary unique abilities. Aside from shrinking the Tarōs to 4 inches tall with the phrase "Kneel down to me!" (頭が高い!, Zu ga takai!?),[1] he also cannot be forcibly removed from Ryotaro's body as he does not need a contract to possess humans. When possessing Ryotaro, Sieg says "Descending, yet above it all…" (降臨、満を持して…, Kōrin, man o jishite…?). He almost vanishes due to his contract holder being a newborn child and unable to form proper memories, but Ryotaro is able to discover that Sieg actually made a contract with the mother to ensure her then unborn son's safety, saving Sieg's life in the process. As his contract has been fulfilled, the DenLiner takes Sieg to the date of his Shiori's greatest memory and lives in the past freely. After his appearances in the television series, he appears in the films Kamen Rider Den-O: I'm Born! and Saraba Kamen Rider Den-O: Final Countdown allowing for the transformation into Wing Form, and again in Cho Kamen Rider Den-O & Decade Neo Generations: The Onigashima Warship, pestering Tsukasa's group until brought to the climatic battle to join the Tarōs in forming Super Climax Form. He also appeared in Cho-Den-O Trilogy Episode Blue: The Dispatched Imagin is Newtral.
During his first time on the DenLiner, he demanded that the others call him "Prince" (プリンス, Purinsu?) and asked for Hana to be his "Princess" (姫, Hime?), and was punched for each time he called her that. After his return, Sieg refers to the Tarōs as his "family" instead of his "friend" phrasing. In the Imagin Anime OVA, Sieg had an additional power "Super-Ultra Kneel down to me!" (スーパーウルトラ頭が高い!, Sūpā-Urutora Zu ga takai!?) that allows him to shrink everything in sight, even an entire planet. His name is given as "Zieg" in the series' photobook DETAIL OF HEROES: Masked Rider Den-O Exclusive Photograph Collection: IMAGINE (DETAIL OF HEROES 仮面ライダー電王特写写真集 IMAGINE, DETAIL OF HEROES Kamen Raidā Den'ō Tokusha Shashinshū: Imajin?), however, other materials give his name as "Sieg," such as the earlier photobook Masked Rider Den-O Photobook: IMAGIN (仮面ライダー電王フォトブック IMAGIN, Kamen Raidā Den'ō Fotobukku Imajin?). Sieg's physical form and name are based on swan and Prince Siegfried (ジークフリート王子, Jīkufurīto Ōji?) from the story Swan Lake (白鳥の湖, Hakuchō no Mizuumi?).
Sieg is voiced by Shin-ichiro Miki (三木 眞一郎, Miki Shin'ichirō?). Miki was also known as the voice of Assassin in Fate/stay night.
Teddy (テディ, Tedi?) is Kotaro Nogami's Imagin partner from the future, able to assume the form of the Macheteddy (マチェーテディ, Machētedi?, from "machete") sword New Den-O uses as Strike Form. He is a polite and reserved character in general, humbling himself to his friends. Unlike the other Imagin, his form is based on the stories that Kotaro was told by the Owner of his grandfather Ryotaro Nogami's exploits with the Tarōs as Kamen Rider Den-O. As such, the name he is initially given is "Neotaros" (ネオタロス, Neotarosu?), as evident by the designs resembling the letters NEO on his body, until Kotaro renames him after experiencing his grandfather's true meek life. Like Sieg, Teddy is a special case as he can sense whenever his contract holder is in any immediate danger and neutralize it. It has been described that Teddy is the Sancho Panza to Kotaro's Don Quixote.[2]
Teddy first appears with Kotaro during the events of Saraba Kamen Rider Den-O: Final Countdown, both serving to replace Ryotaro and the Tarōs as protectors of spacetime. When Shiro travels back in time to May 23, 1729, and the New DenLiner gang follows, Teddy is the one who learns of Shiro's plans to attack the small village nearby and is seriously wounded by Shiro's forces. He recovers in time to help in the final battle against Kamen Rider Yuuki. But during the events of Episode Blue: The Dispatched Imagin is Newtral, Teddy is forced to set up a new contract with the Owner as his original contract had expired in the events of Final Countdown and is renamed Aleksandrovic (アレクサンドロヴィチ, Arekusandorovichi?). Though he nearly destroys himself in the process by derailing from his contract to help Kotaro, Teddy becomes his partner again.
Teddy is voiced by Daisuke Ono (小野 大輔, Ono Daisuke?). Ono was also known as the voice of Itsuki Koizumi from the Haruhi Suzumiya franchise.
- Past date: April 12, 2008
An evil version of Momotaros, Negataros (ネガタロス, Negatarosu?) and a select few Imagin are stray Imagin who evaded the fate of the other evil Imagin when Kai ceased to exist in the final episode. From there, he comes to possess a stolen Rider Pass, allowing him to assume an evil version of Den-O Sword Form called Nega Den-O (ネガ電王, Nega Den'ō?). Recruiting members of the Fangire Race and mobsters to his aid, Negataros intends to restore the future where the Imagin came from. But Negataros has to deal with both the DenLiner Police (デンライナー署, Denrainā Sho?) led by Ryotaro Nogami, an inside man in the form of Yuto Sakurai, further worsened by the brief meddling of Wataru Kurenai.
In the end, Negataros' plan is foiled and his armor is destroyed by the Double Boistous Kick & Darkness Moon Break of Kiva & Den-O Climax Form before he finally meets his end in battle while using the Nega DenLiner against the DenLiner, the ZeroLiner and Castle Doran.
Negataros is also featured prominently in the S.I.C. Hero Saga (S.I.C.ヒーローサーガ, Esu Ai Shī Hīrō Sāga?) in Hyper Hobby Magazine. The story is a retelling of the events of Climax Deka featuring Negataros travelling to April 3, 1971, to team up with the Shocker organization and combating Den-O and the Tarōs along the way.
As Negataros is an evil version of Momotaros, his physical form is also based on the myth of Momotarō (桃太郎?).
Negataros is voiced by Hikaru Midorikawa (緑川 光, Midorikawa Hikaru?). Midorikawa was also known as the voice of Android #16 in Dragon Ball Z.
Eve (イブ, Ibu?) is an artificial Doberman Pinscher Imagin created the Time Police and partnered to Reiji Kurosaki. Being an artificial Imagin, Eve has infinite knowledge and is able to counter any attack which he uses greatly even when he is not the one fighting. Like Kurosaki, Eve has little emotion, thinking only about duty and performing judgement. But when Kurosaki starts showing emotion, Eve deems humanity too illogical to exist and becomes G Den-O himself to execute everyone. He was then destroyed after Diend in Complete Form used the Gekijouban card along with Kamen Rider Den-O Climax Form along with the G Den-O system.
Eve is voiced by Hiroki Takahashi (高橋 広樹, Takahashi Hiroki?).
- Bat Imagin (バットイマジン, Batto Imajin?)
- Myth/legend: The Bat, the Birds, and the Beasts (卑怯なコウモリ, Hikyō na Kōmori?)
- Appearances: Episodes 1-2
- Voice: Kiyoyuki Yanada (梁田 清之, Yanada Kiyoyuki?)
- Host: Tetsuo (哲男, Tetsuo?)
- Past date: December 24, 2004
- Defeated by: Den-O Sword Form's Full Charge - Extreme Slash
- Gigandeath: Heaven
- Destroyed by: Den-O Sword Form's DenLiner Gouka
The Bat Imagin possesses ability to create wings to fly and use sonics wave as weapon, the Bat Imagin fulfills his contract with the Tetsuo for return of his jinglebell keyholder. Attacking everyone with a jinglebell keyholder. The Bat Imagin battled Den-O Sword Form, but the fight ended in being defeated, however. He was able to survived from Sword Form's Extreme Slash as well, and continues this until fulfilling the contract. When he travels to the past, the Bat Imagin possesses Tetsuo's body and begins causing havoc until Den-O appears and forces him to abandon Tetsuo. And he is destroyed by Den-O, he then becomes Gigandeath Heaven and is ultimately defeated by DenLiner Gouka.[3]
- Chameleon Imagin (カメレオンイマジン, Kamereon Imajin?)
- Myth/legend: The Frog Prince (カエルの王子, Kaeru no Ōji?)
- Appearances: Episodes 3-4
- Voice: Junichi Kanemaru (金丸 淳一, Kanemaru Jun'ichi?)
- Host: Yū Yamagoshi (山越 佑, Yamagoshi Yū?)
- Past date: March 15, 2006
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash
The Chameleon Imagin wields a whip and can breathe fire. When Yū Yamagoshi wishes for "a hell of a lot of money," the Chameleon fulfills this wish by attacking banks and stealing money. When he travels to the past, the Chameleon Imagin begins to destroy various cars while in control of Yamagoshi. The Chameleon Imagin overpowers Den-O Plat Form until Momotaros apologizes for his earlier squabble with Ryotaro and takes over as Den-O Sword Form, slicing the Imagin in half at the waist with his Extreme Slash and destroying him.[4]
- Crust Imagin (クラストイマジン, Kurasuto Imajin?)
- Myth/legend: The Crab and the Monkey (サルカニ合戦, Saru Kani Gassen?)
- Appearances: Episodes 5-6
- Voice: Kyōsei Tsukui (津久井 教生, Tsukui Kyōsei?)
- Host: Daiki Saitō (斉藤 大輝, Saitō Daiki?)
- Past date: October 15, 2006
- Defeated by: Den-O Rod Form's Full Charge - Solid Attack - DenRider Kick
- Gigandeath: Hades
- Destroyed by: Den-O Rod Form's DenLiner Isurugi w/ Gouka
The Crust Imagin wields a boomerang-like weapon and uses seaweed-like tendrils to attack. When Daiki Saitō wishes to be back on his soccer team, the Crust fulfills this wish by hospitalizing the other members. He then travels to the past and begins attacking the soccer stadium. When destroyed by Den-O Rod Form, the Crust Imagin becomes Gigandeath Hades and is then destroyed by DenLiner Isurugi.[5]
- Crow Imagin (クロウイマジン, Kurō Imajin?)
- Myth/legend: The Crow and Other Birds (鳥の王様選び, Tori no Ōsama Erabi?)
- Appearances: Episodes 7-8
- Voice: Rintarō Nishi (西 凛太朗, Nishi Rintarō?)
- Host: Yumi Saitō (斉藤 優美, Saitō Yumi?)
- Past date: July 24, 2006
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash
The Crow Imagin wields a cane and uses his feathers as explosive shurikens. When Yumi Saitō wishes to forget about her ex-boyfriend, the Crow Imagin fulfills this wish by destroying anything playing Four Seasons Concerto No. 1: Spring. Once in the past, he "erases" all of the members of Yumi and Toyama's wedding party. The Crow Imagin is defeated by Den-O Sword Form after Rod Form manages to counter his flight ability.[6]
- Rhino Imagin (ライノイマジン, Raino Imajin?)
- Myth/legend: The Naked Rhinoceros (はだかのサイ, Hadaka no Sai?)
- Appearances: Episodes 9-10
- Voice: Tsuyoshi Koyama (小山 剛志, Koyama Tsuyoshi?)
- Host: Shinji Kikuchi (菊池 信司, Kikuchi Shinji?)
- Past date: May 21, 2006
- Defeated by: Den-O Ax Form's Full Charge - Dynamic Chop
- Gigandeath: Hell
- Destroyed by: Den-O Ax Form's DenLiner Rekkou w/ Gouka
The Rhino Imagin wields a mace and possesses brute strength. When Shinji Kikuchi wishes to be the best karate master in Tokyo, the Rhino fulfills this wish by attacking all of his former competitors. When he travels to the past, the Rhino Imagin destroys the karate arena, and is confronted by Den-O's Sword Form and manages to have the upperhand until Kintaros forms a contract with Ryotaro, turning Den-O to Ax Form. Despite his best attempts, the Rhino's mace is shattered by Den-O's brute strength, allowing him to be struck down by the Dynamic Chop. He then reforms into Gigandeath Hell and is destroyed by DenLiner Rekkou.[7]
- Ivy Imagin (アイビーイマジン, Aibī Imajin?)
- Myth/legend: Jack and the Beanstalk (ジャックと豆の木, Jakku to Mame no Ki?)
- Appearances: Episodes 11-12, 49, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Keiichi Sonobe (園部 啓一, Sonobe Keiichi?)
- Host: Kensaku Kobayashi (小林 謙作, Kobayashi Kensaku?)
- Past date: November 8, 2006
- Destroyed by: Den-O Ax Form's Full Charge - Dynamic Chop
The Ivy Imagin wields a double-bladed sword and uses his vines as weapons. After sensing Kensaku's subconscious desire to be with his daughter Kasumi, the Ivy Imagin fulfills this wish by preventing her career from advancing. When he travels to the past, the Ivy Imagin destroys the Kobayashi's hometown, and is eventually defeated by Den-O Ax Form. Due to Kintaros' interference in the past, the Ivy Imagin is prevented from ever making the contract at all, negating his damage.[8]
- Owl Imagin (オウルイマジン, Ōru Imajin?)
- Myth/legend: The Owl and the Birds (フクロウと鳥たち, Fukurō to Tori tachi?)
- Appearances: Episodes 13-14
- Voice: Takaya Kuroda (黒田 崇矢, Kuroda Takaya?)
- Host: Shūji Toyama (戸山 秀二, Toyama Shūji?)
- Past date: February 20, 1997
- Defeated by: Den-O Gun Form's Full Charge - Wild Shot
- Gigandeath: Heaven and Hades
- Destroyed by: Den-O Gun Form's Wild Shot & DenLiner Ikazuchi
The Owl Imagin wields a sword and uses his feathers as bombs, just like the Crow Imagin. When Shūji Toyama wishes for the park he works at to become a better place for the stray animals that live in it, the Owl fulfills this wish by first attacking any human who tries to enter the park, then, eventually barricading the entrance to the park with cars, and debris. When he travels to the past, havoc ensues before the Owl Imagin is defeated by Den-O Gun Form, however. The Owl Imagin reform into Gigandeath Heaven and Hades, the Heaven is destroyed by DenLiner Ikazuchi's energy blast and the Hades Gigandeath is destroyed by combined firepower of all time train and Gun Form's Wild Shot.[9]
- Whale Imagin (ホエールイマジン, Hoēru Imajin?)
- Myth/legend: Pinocchio (ピノキオ, Pinokio?)
- Appearances: Episodes 15-16, 47, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Yōhei Tadano (多田野 曜平, Tadano Yōhei?)
- Host: Kōsaku Higuchi (火口 耕作, Higuchi Kōsaku?)
- Past date: March 31, 2004, June 16, 2000
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash
The slow and less-intelligent Whale Imagin wields a staff with a fluke at one end and has the ability to breathe water from its mouth. When Kōsaku Higuchi wishes to get rid of his drinking problem, the Whale Imagin fulfills this wish by attacking anyone who knew of his drinking problem: former employees and a sake vendor. Once in the past, he attacks people who were having a hanami party under a starlit night sky. The Whale Imagin is confronted by Den-O Sword Form and Gun Form, and is destroyed by Den-O Sword Form.[10]
Another Whale Imagin was amongst the massive army of Imagin that invaded both the past and the present as part of Kai's plan to ensure the Imagins' future, this armed with a sword rather than a staff.
- Wolf Imagin (ウルフイマジン, Urufu Imajin?)
- Myth/legend: Little Red Riding Hood (赤頭巾ちゃん, Akazukin-chan?)
- Appearances: Episodes 17-18, Hyper Battle Video, Imagin Anime 2
- Voice: Nobuyuki Hiyama (檜山 修之, Hiyama Nobuyuki?)
- Host: Yuka Sawada (沢田 由香, Sawada Yuka?)
- Past date: April 7–8, 2004
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash, Den-O Liner Form's Fullthrottle Break (Hyper Battle Video)
The hot-tempered Wolf Imagin wields a sword able to launch crescent energy beams. When Yuka Sawada wishes to relive her high school days, the Wolf fulfills this wish by vaporizing high school girls and giving their possessions to Yuka. When the Wolf Imagin travels to the past, Gun Form is the first to confront him, stopping the Wolf Imagin from completing its mission. After being stuck for a day in the past with no new information from Kai of Sakurai's location, the Wolf Imagin goes berserk with bored rage and decides to destroy anything in his path to complete the mission. Although both Rod and Ax Form fought the Wolf Imagin, Sword Form is the one that finally destroys him.
The Wolf Imagin later returns in the Kamen Rider Den-O Hyper Battle Video, seen amongst the other Imagin aboard the DenLiner exercising along with them before making his move around Ryutaros' turn. After mocking Ryotaro, he is destroyed by Den-O Liner Form.[11]
The Wolf Imagin is also one of the two antagonistic Imagin featured in the Imagin Anime 2 shorts, making two appearances, as well as in merchandise from Animate.
- Jelly Imagin (ジェリーイマジン, Jerī Imajin?)
- Myth/legend: The Jellyfish's Errand (クラゲのおつかい, Kurage no Otsukai?)
- Appearances: Episodes 19-20
- Voice: Ryūsei Nakao (中尾 隆聖, Nakao Ryūsei?)
- Host: Kōhei Amano (天野 晃平, Amano Kōhei?)
- Past date: March 12, 2006
- Destroyed by: Zeronos Vega Form's Full Charge - Grand Strike
The Jelly Imagin possesses electrical tentacles and the ability to liquefy his body. When Kōhei Amano wishes to unearth the time capsule that had been left behind by his girlfriend, the Jelly Imagin fulfills its contract by forcing Amano to unearth any time capsule that he sees being buried. Once in the past, the Jelly Imagin attacks a bunch of picnickers that are near the original time capsule's burial site. Though he overpowers Den-O Sword Form, the Jelly Imagin is destroyed by Zeronos Vega Form.[12]
- Tortoice Imagin (トータスイマジン, Tōtasu Imajin?)
- Myth/legend: The Tortoise and the Hare (ウサギとカメ, Usagi to Kame?)
- Appearances: Episodes 21-22
- Voice: Kōji Ochiai (落合 弘治, Ochiai Kōji?)
- Host: Tanaka (田中, Tanaka?)
- Past date: November 29, 2006
- Defeated by: Den-O Rod Form's Full Charge - Solid Attack - DenRider Kick (Tortoice) & Zeronos Vega Form's Full Charge - Splendid End (Hare-half)
- Gigandeath: Heaven and Hell
- Destroyed by: Den-O Rod Form's DenLiner Isurugi & Zeronos Vega Form's ZeroLiner Drill & Naginata
The Tortoice [sic] Imagin is actually two Imagin in one: a dominant and slow tortoise-half with an energetic hare-half generally dormant inside the Imagin's body unless needed. The Tortoice Imagin can fire large pellets out of his mouth and has a serious personality while his hare-half has a playful, childish personality. The wish of the Imagin's contractor, Tanaka, is unclear because the wish is made at the time he is half-awake. However, the Tortoice Imagin is unable to travel back in time because Tanaka cannot remember making a contract. Once Tanaka is able to remember, the Tortoice Imagin travels back in time only to be defeated by Zeronos and Den-O taking on the Imagin and his hare half. However, the two halves reform into Gigandeaths, with Hell attempting to escape until the ZeroLiner corners it. The Heaven is destroyed by DenLiner Isurugi's beams and the Hell Gigandeath is chopped to pieces by Zeroliner Naginata's blades and explodes.[13]
- Scorpion Imagin (スコーピオンイマジン, Sukōpion Imajin?)
- Myth/legend: The Boy Hunting Locusts (バッタをとる子供とサソリ, Batta o Toru Kodomo to Sasori?)
- Appearances: Episodes 23-24, 49
- Voice: Nobutoshi Canna (神奈 延年, Kanna Nobutoshi?)
- Host: Akio Masuda (増田 明男, Masuda Akio?)
- Past date: February 22, 2002
- Destroyed by: Den-O Ax Form's Full Charge - Dynamic Chop
The Scorpion Imagin wield a axe and can fire needle from sting-like hand, he has made a contract to abduct Shiori for Akio, preferring to grant an "easy" wish with no tolerance for those who attempt to meddle in his affairs. Though halted by Den-O twice, the Scorpion managed to go back to time. The Scorpion Imagin was fought by Den-O's Rod Form before Ax Form finishes him off.[14]
- Spider Imagin (スパイダーイマジン, Supaidā Imajin?)
- Myth/legend: Tsuchigumo Story (土蜘蛛草子, Tsuchigumo-zōshi?)
- Appearances: Episodes 25-26, Hyper Battle Video, & Cho-Den-O Trilogy: Episode Yellow: Treasure de End Pirates
- Voice: Chihiro Suzuki (鈴木 千尋, Suzuki Chihiro?)
- Host: Masashi Aoki (青木 雅史, Aoki Masashi?)
- Past date: November 18, 2001
- Destroyed by: Zeronos Vega Form's Full Charge - Splendid End (first), Den-O Sword Form's Full Charge - Extreme Slash (second), Den-O Liner Form's Fullthrottle Break (Hyper Battle Video)
The red-eyed Spider Imagin, able to fire energy webs from his arms, was bent on granting Masashi's wish for his sister Mayu to see a star, intent on tying her to a radio tower to fulfill it. Though initially defeated by Zeronos, it turned out that the Spider Imagin split itself in two prior to the fight with a more serious version outliving his crazed "brother." The second green-eyed Spider Imagin find the way to fulfill the wish without problem by destroying electricity pylon, resulting an massive blackout throughout the distrinct. Once in time, the Spider battled Den-O Gun-Form to avenge his crazed "brother" until future Zeronos interfered and Sword-Form finished the fight.
The red-eyed Spider Imagin later returns in the Kamen Rider Den-O Hyper Battle Video, amongst the other Imagin aboard the DenLiner exercising before making his move around Ryutaros' turn. After mocking Ryotaro, he is destroyed by Den-O Liner Form.[15]
- Bloodsucker Imagin (ブラッドサッカーイマジン, Buraddosakkā Imajin?)
- Myth/legend: Leeches and Master Kobo (ヒルと弘法大師, Hiru to Kōbō-Daishi?)
- Appearances: Episodes 27-28
- Voice: Nobuo Tobita (飛田 展男, Tobita Nobuo?)
- Host: Shōichi Ike (池 祥一, Ike Shōichi?)
- Past date: May 20, 2000
- Destroyed by: Den-O Climax Form's Charge and Up - Boistous Kick
The Bloodsucker Imagin is brought to Shōichi Ike by the Molech Imagin to aid him in keeping Zeronos from interfering in Gaoh's affairs, running off once it did his part. The Imagin then proceeds to get back the stolen jewels that Ike secretly sold, succeeding in fulfilling the contract due to the crisis Ryotaro learned of with Urataros and gang. Though he overpowers Sword Form on two occasions, the Bloodsucker Imagin is no match for the newly accessed Climax Form.[16]
- Molech Imagin (モレクイマジン, Moreku Imajin?)
- Myth/legend: We All Came From Eggs (ご先祖様はみんな卵, Gosenzo-sama wa Minna Tamago?, Kenyan story)
- Appearances: Episode 27, 47-49, & Kamen Rider Den-O The Movie: I'm Born!
- Voice: Hidenori Tokuyama (徳山 秀典, Tokuyama Hidenori?)
- Host: Hiroshi Katō (加藤 浩, Katō Hiroshi?)
- Past date: May 8, 2000
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash
The Molech Imagin is one of Gaoh's subordinates, able to use his tongue as a weapon along with mucus-kicks. He is sent to the year 2007 to set up Gaoh's plan. With the Bloodsucker Imagin's aid, the Molech Imagin found an ideal pawn in Hiroshi Katō, setting up a contract, to help the human acquire a necklace, so he can go back in time with Den-O in pursuit. Though destroyed, the Molech Imagin gives Gaoh and the other Imagin the time they need to hijack the DenLiner.[17]
Kai later created another Molech Imagin as part of his massive army of Imagin that face off against Zeronos Zero Form in the present time as part of Kai's plan to ensure the future of the Imagin.
Interestingly, Hidenori Tokuyama, the voice of the Molech Imagin, also portrays Sou Yaguruma/Kamen Rider KickHopper in Kamen Rider Kabuto.
- Cobra Imagin (コブライマジン, Kobura Imagin?)
- Myth/legend: The Bear Fighting Hero (クマたいじの勇者, Kuma Taiji no Yūsha?, Thai story)
- Appearances: Episodes 26-27, 47, Kamen Rider Den-O The Movie: I'm Born!, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Takashi Hagino (萩野 崇, Hagino Takashi?)
- Past date: June 16, 2000 (Kai)
- Destroyed by: Den-O Wing Form's Full Charge - Royal Smash (Gaoh's), Den-O Ax Form's Full Charge - Dynamic Chop (Kai's)
One of Gaoh's minions, the Cobra Imagin almost kills Ryotaro in the Edo era when Sieg takes over and assumes Wing Form to easily dispatch the Imagin.
Kai later creates several more Cobra Imagin as part of his massive army of Imagin that invade both the past and the present as part of Kai's plan to ensure the future of the Imagin.
Interestingly, Takashi Hagino, the voice of the Cobra Imagin, also portrays Takeshi Asakura/Kamen Rider Ouja in Kamen Rider Ryuki. Coincidentally Ouja was a cobra-themed Rider.
- Salamander Imagin (サラマンダーイマジン, Saramandā Imagin?)
- Myth/legend: An incarnation of the Death God Xolotl (死神ショロトルの化身, Shinigami Shorotoru no keshin?)
- Appearances: Episode 26-27 & Kamen Rider Den-O The Movie: I'm Born!
- Voice: Masato Uchiyama (内山 眞人, Uchiyama Masato?)
- Destroyed by: Den-O Rod Form's Full Charge - Solid Attack - DenRider Kick
One of Gaoh's minions, he helped unearthed the GaohLiner by possessing one of the Sanada Ten Braves and having him fire a flaming arrow near the burial site. He also aids his master in fighting the multiple incarnations of Den-O in the Climax Scene. His design is based on the Aztec god Xolotl who transformed himself into an axolotl salamander in order to escape a battle.[18]
Interestingly, Masato Uchiyama, the voice of the Salamander Imagin, also portrays Shun Kageyama/Kamen Rider PunchHopper in Kamen Rider Kabuto.
- Gecko Imagin (ゲッコーイマジン, Gekkō Imajin?)
- Myth/legend: The Mystery of the Newt (井守の怪, Imori no Kai?)
- Appearances: Episode 26-27, 40, 47-49, Kamen Rider Den-O The Movie: I'm Born!, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Kenichi Suzumura (鈴村 健一, Suzumura Ken'ichi?)
- Destroyed by: Den-O Gun Form's Full Charge - Wild Shot (Gaoh's), Den-O Climax Form's Charge and Up - Boistous Kick (Kai's)
One of Gaoh's minions, the Gecko Imagin served his master in fighting the multiple incarnations of Den-O in the Climax Scene.
Kai created another Gecko Imagin, one that teamed with another Newt Imagin in overpowering Den-O Plat Form until Climax Form is accessed. Despite help from the Newt Imagin, he is successfully repelled and subsequently defeated in due part to the teamwork of the Tarōs Imagin.[19]
Another Gecko Imagin is amongst the massive army of Imagin that faces off against Zeronos Zero Form in the present time as part of Kai's plan to ensure the future of the Imagin.
Interestingly, the voice of the Gecko Imagin, Kenichi Suzumura, is also the voice of Ryutaros.
- Newt Imagin (ニュートイマジン, Nyūto Imajin?)
- Myth/legend: The Mystery of the Newt (井守の怪, Imori no Kai?)
- Appearances: Episode 26-27, 40, Kamen Rider Den-O The Movie: I'm Born!, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Yasuka Saitoh (齋藤 ヤスカ, Saitō Yasuka?) (Gaoh's), Kōji Yusa (遊佐 浩二, Yusa Kōji?) (Kai's)
- Destroyed by: Den-O Ax Form's Full Charge - Dynamic Chop (Gaoh's), Den-O Climax Form's Charge and Up - Boistous Kick (Kai's)
One of Gaoh's minions, the Newt Imagin served his master in fighting the multiple incarnations of Den-O in the Climax Scene.
Kai created another Newt Imagin, one that teamed with another Gecko Imagin in overpowering Den-O Plat Form until Climax Form is accessed. Despite help from the Gecko Imagin, he is successfully repelled and subsequently defeated in due part to the teamwork of the Tarōs Imagin.[20]
Interestingly, the voice of Newt Imagin (Kai's), Kōji Yusa, is also the voice of Urataros.
- Wasp Imagin (ワスプイマジン, Wasupu Imajin?)
- Myth/legend: The Wasp and the Snake (ハチとヘビ, Hachi to Hebi?)
- Appearances: Episodes 29, 47-49, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Shōto Kashii (樫井 笙人, Kashii Shōto?)
- Host: Machida (町田, Machida?)
- Past date: December 5, 2005
- Destroyed by: Den-O Climax Form's Charge and Up - Boistous Punch
The Wasp Imagin, able to fire needles from his forehead and wields a rapier, grants Machida's wish to dispose of the evidence of the manslaughter he committed, arriving on the day it occurred. Den-O fought the Imagin in Plat Form, losing until the Taros managed to perfect their teamwork to an extent.[21]
Another Wasp Imagin is amongst the massive army of Imagin that faces off against Zeronos Zero Form in the present time as part of Kai's plan to ensure the future of the Imagin.
- Bluebird Imagin (ブルーバードイマジン, Burūbādo Imajin?)
- Myth/legend: The Blue Bird (青い鳥, Aoi Tori?)
- Appearances: Episodes 30, 47-49
- Voice: Mitsuaki Hoshino (星野 充昭, Hoshino Mitsuaki?)
- Host: Tooru Terasaki (寺崎 トオル, Terasaki Tōru?)
- Past date: April 27, 2002, June 16, 2000
- Destroyed by: Den-O Climax Form's Charge and Up - Boistous Shout
The Bluebird Imagin is similar to the Owl Imagin, but can create balls of "fireworks" to throw as weapons. In his first encounter with Sword Form and Deneb, the Bluebird Imagin escapes to fulfill Tōru's wish for his wife to see the fireworks, the Bluebird Imagin fulfill the wish by using his firework on her. He later wounds Deneb while abducting Tōru, with the contract fulfilled. In the past, the Bluebird Imagin is halted by Sword Form, fighting it until he assumes Climax Form.[22]
Another Bluebird Imagin was amongst the massive army of Imagin that invaded both the past and the present as part of Kai's plan to ensure the Imagins' future.
- Rabbit Imagin (ラビットイマジン, Rabitto Imajin?)
- Myth/legend: The Tortoise and the Hare (ウサギとカメ, Usagi to Kame?)
- Appearances: Episode 31
- Voice: Toshitsugu Takashina (高階 俊嗣, Takashina Toshitsugu?)
- Host: A man (ある男, aru otoko?)
- Past date: July 26, 2004
- Destroyed by: Den-O Ax Form's Full Charge - Dynamic Chop
The Rabbit Imagin resembles the hare-half of the Tortoice Imagin, only in a furry white color scheme and wield a sickles. The Rabbit Imagin enjoyed laughing and had his contract holder hanging for his life, granting the man's wish to "fly". Deneb attempted to fight the Rabbit Imagin off with Yuto reluctant to use up his last Zeronos Card. The Rabbit Imagin then fought Ax Form in the past but was greatly outmatched and hid behind a tree in an attempt to escape the deathblow, his final words being that Den-O won't stop the Imagin forever.[23]
- Anthopper Imagin (アントホッパーイマジン, Antohoppā Imajin?)
- Myth/legend: The Ant and the Grasshopper (アリとキリギリス, Ari to Kirigirisu?)
- Appearances: Episodes 31-32, & Hyper Battle Video
- Voice (Ari): Kōsuke Toriumi (鳥海 浩輔, Toriumi Kōsuke?)
- Voice (Kirigiris): Tomokazu Seki (関 智一, Seki Tomokazu?)
- Host: Yuya Fujishiro (藤代 裕也, Fujishiro Yūya?)
- Destroyed by: Zeronos Altair Form's Full Charge - Grand Strike (Ari), Den-O Climax Form's Charge and Up - Extreme Slash: Climax Version (Kirigiris), Den-O Liner Form's Fullthrottle Break (Ari, Hyper Battle Video)
The two Anthopper Imagin differ from previous Imagin as they work for the goal to destroy Den-O, picking Fujishiro as an ideal contract holder. The two are ant-like from the left-half of their upper bodies and the right-halves katydid-like. The cold-headed brother, Ari, who wields a shovel-like sword while its maniacal brother, Kirigiris. Has a maniacal persona with a lock for taunting his opponent and wields a viola-like sword. Ari lures Den-O to a railway for their trap, fighting Gun Form at a disadvantage until Kirigiris makes his move and the two quickly overpower Gun Form. However, Yuto knew that it would be a trap and sent Deneb to interfere. This act forces Ari to use Fujishiro to adbuct Airi, leaving a message for Den-O to fight him and his brother at the Mitsuboshi Factory if he wants Airi back alive. Yuto and Deneb go in Ryotaro's place to save Airi, with Yuto reluctant to transform and use his last card. M-Ryotaro, however, manages to make it before he transforms with payback on his mind. Both Den-O Sword Form and Deneb attempt to fight off the two Anthopper brothers until Yuto arrives again and transforms into Zeronos for the last time. Zeronos finishes off Ari after a long battle while Den-O assumes Climax Form and finishes off Kirigiris as payback for beating up Ryutaros.
Ari later returns in the Kamen Rider Den-O Hyper Battle Video. He is amongst the other Imagin exercising along with them until he makes his move around Ryutaros' turn. After mocking Ryotaro, he is destroyed by Den-O Liner Form.[24]
- Kraken Imagin (クラーケンイマジン, Kurāken Imajin?)
- Myth/legend: The Kraken of Norse mythology (北欧神話のクラーケン, Hokuō Shinwa no Kurāken?)
- Appearances: Episodes 33-34
- Voice: Tetsu Inada (稲田 徹, Inada Tetsu?)
- Host: Piano Man (ピアノの男, Piano no Otoko?)
- Past date: January 18, 2004
- Defeated by: Den-O Rod Form's Full Charge - Solid Attack - DenRider Kick
- Gigandeath: Massive flock of Heaven and Hell pack
- Destroyed by: Den-O Rod Form's DenLiner Ikazuchi /w Gouka & ZeroLiner Drill & Naginata
Wielding with a pistol, the Kraken Imagin is able to use it as well as his tentacles for weapons. The Kraken Imagins fulfill his contract with piano man for a piano. But, much to its dismay, his contract wasn't fully completed. The Kraken Imagin battled Den-O Sword Form, but the fight ended in a draw. The Kraken later succeeded in going back through time, where he fought Den-O Rod Form and was defeated by him. However, the Kraken Imagin turning into a massive flock of Heavens and a pack of Hells that destroy the entire district, negating the existence of those there, using all time trains to wipe them all, restoring everything within time and memory to normal, except for the original contract holder.[25]
- Mole Imagin (モールイマジン, Mōru Imajin?)
- Myth/legend: Thumbelina (親指姫サンブリーナ, Oyayubihime Sanburīna?)
- Appearances: Episode 35-36, (Ax-Hand, Claw-Hand, Drill-Hand) 47-49 (New Mole), Saraba Kamen Rider Den-O The Movie: Final Countdown, & OOO, Den-O: Let's Go Kamen Riders
- Voice (Ax-Hand): Daisuke Kirii (桐井 大介, Kirii Daisuke?)
- Voice (Claw-Hand): Kōichi Sakaguchi (坂口 候一, Sakaguchi Kōichi?)
- Voice (Drill-Hand): Akira Sasanuma (笹沼 晃, Sasanuma Akira?)
- Host: Yamaguchi (山口, Yamaguchi?)
- Past date: November 22, 2006; June 16, 2000; January 9, 2007
- Destroyed by: Zeronos Altair Form's Full Charge - Grand Strike (Ax-Hand), Den-O Liner Form's Momo-Sword mode - DenKamen Slash (Claw-Hand and Drill-Hand)
The Mole Imagin is another Imagin out to kill Den-O, able to spin and burrow. The serious "Ax-Hand" Mole Imagin completes Yamaguchi's contract, arriving to the day that he lost a karaoke contest. Den-O Ax Form arrives to fight him, only to deal with both him and his two brothers clones: the crazed Claw-Hand and the effeminate Drill-Hand. The Mole Imagin trio proves too much for Ax Form as he suddenly begins losing his sync with Ryotaro. The two clones depart while their big brother remained to finish the job. Yuto arrives and accepts the elder Sakurai's gift and becomes Zeronos again, defeating the Ax-Hand Mole Imagin as he was about to retreat. The brothers later destroying city apart to lure Den-O and Zeronos back in time to avenge their older brother. Sword Form and Zeronos battle the two Imagin until Momotaros loses his sync and Den-O is reverted to Plat Form. Both brother are nearly successful in defeating Plat Form and Zeronos Vega Form until the Tarōs arrive and give Ryotaro the power to assume Liner Form. The Mole Imagin are no match for Liner Form as Ryotaro defeats them with his newfound power.[26]
Among the bulk of the massive Imagin army Kai creates for the purpose of killing Airi are the New Mole Imagin (NEWモールイマジン, Nyū Mōru Imajin?). These Imagin wear black vests, as opposed to the red vests the regular Mole Imagin wear, and are armed with numerous other weapons for hands.
- Leo Imagin (レオイマジン, Reo Imajin?)
- Myth/legend: The Coward and the Lion of Gold (金のライオンを見つけた男, Kin no Raion o Mitsuketa Otoko?)
- Appearances: Episodes 37-38
- Voice: Kazuhiro Yamaji (山路 和弘, Yamaji Kazuhiro?)
- Past date: January 19, 2006
- Destroyed by: Den-O Liner Form's Ryu-Gun mode - DenKamen Shot
The Leo Imagin is Kai's subordinate and uses his three Leo Soldiers (レオソルジャー, Reo Sorujā?) to kill Momotaros, Urataros, and Kintaros in the Time Station while he handles the task of killing R-Ryotaro upon fulfilling his part in Kai's plan. But Yuto drives the Imagin away with his attack and Momotaros, Urataros, and Kintaros use their versions of Den-O's finishers to destroy his Leo Soldiers. When Den-O Sword Form appears, the Leo Imagin travels back in time through Kai with Den-O in pursuit. But before the fight could start, Momotaros loses his sync with Den-O, leaving Ryotaro to assume Liner Form and fight the Leo Imagin, using the DenKamen Sword's RyuGun Mode to destroy him.[27]
- Panda Rabbit Imagin (パンダラビットイマジン, Panda Rabitto Imajin?)
- Myth/legend: The Tortoise and the Hare (ウサギとカメ, Usagi to Kame?)
- Appearances: Episode 39
- Voice: Kōji Ochiai
- Host: A man (ある男, Aru Otoko?)
- Past date: September 13, 2006
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash
The Panda Rabbit Imagin, a light-weight version of the Rabbit Imagin with a sword, finished his contract of getting its contract holder to the company he wanted to work at, nearly killing him in the process. He was about to go back into time, but got cut off by M-Ryotaro, who decided to use the weakling for Ryotaro to study his fighting moves as Kai looked on from afar. Though Sword Form succeeds in destroying the Imagin, Ryotaro travels back to time to understand the reason why the evil Imagin desire to go back to the past.[28]
- Snail Imagin (スネールイマジン, Sunēru Imajin?)
- Myth/legend: The Snail and the Rosebush (カタツムリとバラの茂み, Katatsumuri to Bara no Shigemi?)
- Appearances: Episodes 39-40, 48-49 (Male), & Saraba Kamen Rider Den-O The Movie: Final Countdown (Male)
- Voice (Female): Nanaho Katsuragi (葛城 七穂, Katsuragi Nanaho?)
- Voice (Male): Takashi Irie (入江 崇史, Irie Takashi?)
- Past date: March 27, 1993 (Female), February 1, 1999 (Male)
- Destroyed by: Den-O Liner Form's - Fullthrottle Break (Female), Zeronos Zero Form's Full Charge - Buster Nova (Male)
The two Snail Imagin serve Kai. Under Kai's orders, the female Snail Imagin, a sadistic Imagin who wield a whip and babies her opponents, uses the teacher of Yuto Sakurai to go back into Yuto's past and take out the Yuto of that time, thus negating Yuto from the present timeline. Ryotaro refuses to accept this loss and assumes Liner Form to battle the female Snail Imagin, weakening her with the DenKamen Sword's other modes before finishing her off with MomoSword mode. In spite of her death, she succeeds in ridding her master of Sakurai by eliminating Yuto as it seemed.
The male Snail Imagin, who armed with a pistol, is later sent by Kai to abduct Hana to force Ryotaro to consider Kai's offer to aid him in ensuring an ideal future. But when Ryotaro refuses, the Snail Imagin attempts to kill him when Yuto manages to return to existence, forcing Kai to send the male Snail Imagin back into time to kill Sakurai. But this time, the male Snail Imagin are no match for Zeronos newly accessed Zero Form as Yuto using the red Zeronos card.
Another male Snail Imagin was amongst the massive army of Imagin that invaded both the past and the present as part of Kai's plan to ensure the Imagins' future.[29]
- Oct Imagin (オクトイマジン, Okuto Imajin?)
- Myth/legend: The Octopus and the Skull (タコとしゃれこうべ, Tako to Sharekōbe?)
- Appearances: Episodes 41-42, 49
- Voice: Kenjirō Tsuda (津田 健次郎, Tsuda Kenjirō?)
- Host: Shōko Hazuki (葉月 翔子, Hazuki Shōko?)
- Past date: November 15, 2006
- Destroyed by: Den-O Liner Form's Momo-Sword mode - DenKamen Slash & Zeronos Zero Form's Full Charge - Buster Nova
The Oct Imagin is a red-colored version of the Kraken Imagin with suction-cup trimmings on its body. He intends to grant Shōko's wish by getting Yuto, even though the Imagin has to bring him alive for the contract to be completed. The Oct Imagin uses ink smoke bomb to temporarily blind the opponent and possesses tentacles able to control or inanimate object, controlling and sabotage Denbird and truck against Den-O. But when the Oct Imagin travel back in time, he can now kill Yuto without any penalty, using the ZeroGasher against Zeronos. Although destroyed by the combined effort of Liner Form and Zero Form, however. A piece of his tentacle enter the AuraLiner, bring it life as it became a hydra monster-like rampaged time track, using combine firepower of all time train and KingLiner to destroy it.[30]
- Armadillo Imagin (アルマジロイマジン, Arumajiro Imajin?)
- Myth/legend: The Armadillo's Song (ザ・アルマジロズ・ソング, Za Arumajirozu Songu?)
- Appearances: Episodes 43-44, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Wataru Takagi (高木 渉, Takagi Wataru?)
- Host: Ōzaki (大崎, Ōzaki?)
- Past date: June 25, 2005
- Destroyed by: Den-O Climax Form's Charge and Up - Extreme Slash: Climax Version
The pain-mongering Armadillo Imagin carrying a ball and chain as his weapon and able to roll up into a ball, as well as able to burrow underneath, just like the Mole Imagin. the Imagin completes his contract to "cut" Ōzaki and goes back into the time when Ōzaki was recruited by the Shirakaku. The Armdillo Imagin overpowers both Zeronos Zero Form and Den-O Liner Form until the DenLiner provides the two with an escape from the losing fight. However, the Imagin manages to stow onto the DenLiner and arrives at the Time Station, seeing it much fun to smash the station. But Urataros and Kintaros hold him off with Ryutaros supporting them until both Momotaros and Ryotaro arrive. Each of the Tarōs fight the Imagin in their respective Den-O forms before assume into Climax Form to finish him off, their teamwork overpowering his strength.[31]
- Albinoleo Imagin (アルビノレオイマジン, Arubinoreo Imajin?)
- Myth/legend: The Coward and the Lion of Gold (金のライオンを見つけた男, Kin no Raion o Mitsuketa Otoko?)
- Appearances: Episodes 43-46, & Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Takaya Kuroda
- Past date: January 10, 2007
- Destroyed by: Den-O Liner Form's Momo-Sword mode - DenKamen Slash
The Albinoleo Imagin is Kai's subordinate, a stronger white version of the Leo Imagin. Sent to kill Airi, he easily overpowers Den-O Liner Form and Zeronos Zero Form until elder self of Sakurai arrives, turning the tables. After being pummeled by the trio of Riders, the Altair Form and Zeros Form leave the Albinoleo Imagin open for Liner Form's DenKamen Slash, which destroys him.[32]
- Snowman Imagin (スノーマンイマジン, Sunōman Imajin?)
- Myth/legend: The Snow Man (スノーマン, Sunōman?)
- Appearances: Episode 45
- Voice: Tōru Ōkawa (大川 透, Ōkawa Tōru?)
- Host: Storekeeper of Watch Store (時計店の店主, Tokeiten no Tenshu?)
- Past date: January 10, 2007
- Destroyed by: Den-O Liner Form's Ura-Rod mode - DenKamen Attack
Using a cane as his weapon, the Snowman Imagin fulfills his contract with the Storekeeper, emptying out his stock by giving them to everyone as presents. Den-O Sword Form fails to stop the Imagin from going back in time to find the Ryotaro of that time. But Liner Form is able to destroy the Snowman Imagin when he attempts to outrun the final blow.[33]
- Death Imagin (デスイマジン, Desu Imajin?)
- Myth/legend: Death's Messengers (死神使い, Shinigami Tsukai?)
- Appearances: Episodes 48–49
- Voice: Hiroshi Yanaka (家中 宏, Yanaka Hiroshi?)
- Destroyed by: Den-O Sword Form's Full Charge - Extreme Slash: Final Version
The Death Imagin is the leading force of Kai's Imagin army, created by using Kai's all remaining memories, being a separate entity while still an integral part of Kai himself. The Death Imagin wields a scythe as his weapon, though he overpower both Den-O Liner Form and Zeronos Zero Form, the Death Imagin is eventually destroyed by Den-O Sword Form and the combined energies of all the good Imagin, dissolving Kai and all Imagin (except for good Imagin) into a sand as a result.[34]
- Pink Rabbit Imagin (ピンクラビットイマジン, Pinku Rabitto Imajin?)
The Pink Rabbit Imagin is one of Negataros's Imagin followers, accompanying the Horse Fangire as they fight Den-O and the Tarōs, being destroyed by Ryutaros.
- Clown Imagin (クラウンイマジン, Kuraun Imajin?)
- Myth/legend: Sixteenth Evening (プルチネッラのお話, Puruchinerra no Ohanashi?)
- Appearances: Kamen Rider Den-O & Kiva The Movie: Climax Deka
- Voice: Chihiro Suzuki (鈴木 千尋, Suzuki Chihiro?)
- Host: Sarah (セーラ, Sēra?)
- Destroyed by: Zeronos Vega Form's Full Charge - Splendid End
The Clown Imagin is one of Negataros's Imagin followers.
- Ghost Imagin (ゴーストイマジン, Gōsuto Imajin?)
- Appearances: Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Hiroshi Kamiya (神谷 浩史, Kamiya Hiroshi?)
- Host: Ryotaro
- Destroyed by: Climax Form's Charge and Up - Extreme Slash: Climax Version
The Ghost Imagin is one of Shiro's Imagin followers and possesses Ryotaro, having him assume Kamen Rider Yuuki's Skull Form. While possessing Ryotaro, Ryotaro is referred to as "A-Ryotaro" (A良太郎, Anazā Ryōtarō?), with the A standing for "Another".
- Phantom Imagin (ファントムイマジン, Fantomu Imajin?)
- Appearances: Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Takuma Takewaka (竹若 拓磨, Takewaka Takuma?)
- Destroyed by: New Den-O
The Phantom Imagin is one of Shiro's Imagin followers, resembling a greenish version of the male Snail Imagin.
- Shadow Imagin (シャドーイマジン, Shadō Imajin?)
- Appearances: Saraba Kamen Rider Den-O The Movie: Final Countdown
- Voice: Tomokazu Sugita (杉田 智和, Sugita Tomokazu?)
- Destroyed by: New Den-O's Strike Form Full Charge - Counter Slash
The Shadow Imagin is one of Shiro's Imagin followers, bearing resemblance to the Anthopper Imagin. Though destroyed by New Den-O, he is revived by Shiro in the epic battle against the Riders.
- Piggies Imagin (ピギーズイマジン, Pigīzu Imajin?)
- Myth/Legend: Three Little Pigs (3匹の子豚, Sanbiki no Kobuta?)
- Appearances: Kamen Rider × Kamen Rider × Kamen Rider The Movie: Cho-Den-O Trilogy: Episode Red: Zero no Star Twinkle
- Voice: Kazuya Nakai (中井 和哉, Nakai Kazuya?), Kōsuke Toriumi (鳥海 浩輔, Toriumi Kōsuke?, right shoulder), and Tetsuya Kakihara (柿原 徹也, Kakihara Tetsuya?, left shoulder)
- Host: Hiroshi Kikuchi (菊地 宏, Kikuchi Hiroshi?)
- Destroyed by: Den-O Climax Form's Charge and Up - Extreme Slash: Climax Version
The Piggies Imagin has two faces on his shoulder pads, each of which has his own separate personality from the actual head and are referred to as his younger brothers. When Hiroshi Kikuchi makes a contract so he can prove himself to be a hero to Airi Nogami, the Piggies Imagin orchestrates the hijacking of the DenLiner to get Den-O out of the way. However, Yuto's interference forces the Imagin to change plans to complete his contract with Kikuchi. However, once the Piggies Imagin feels the contract is complete, Kikuchi refuses to accept it as he was not able to play the part of the hero, making the Piggies Imagin unable to travel back in time. After being knocked away by Zeronos, the Piggies Imagin faces Den-O before he assumes Climax Form and is cut into many pieces.
- Mantis Imagin (マンティスイマジン, Mantisu Imajin?)
- Myth/Legend: The Mantis and the Moon (カマキリと月, Kamakiri to Tsuki?)
- Appearances: Kamen Rider × Kamen Rider × Kamen Rider The Movie: Cho-Den-O Trilogy: Episode Blue: The Dispatched Imagin is Newtral
- Voice: Michie Tomizawa (富沢 美智恵, Tomizawa Michie?)
- Host: Miku Uehara (上原 美来, Uehara Miku?)
- Destroyed by: New Den-O Strike Form's Full Charge - Counter Slash
The Mantis Imagin is a female masochist Imagin with the ability to spray a poisonous purple gas and uses twin rapiers as her weapons. Her goal is to allow a Miku Uehara from the near future to see her grandmother for the last time, as in her timeline she kept putting off celebrating her birthday with her grandmother up until her grandmother died before it could happen. Before the Mantis Imagin can complete her contract and go back in time, New Den-O defeats her.
Whenever an Imagin is defeated, they sometimes reform their bodies along with a berserk state of mind, warping into one of three types of massive creatures called Gigandeath (ギガンデス, Gigandesu?, from "Gigantes"). The number of Gigandeaths emerging from an Imagin can be from a single Gigandeath, to two different types, to an entire army of them. These monsters are mindless and are filled by the urge of destroy. Whenever a Gigandeath emerges, only a Time Train can take it out. All three Gigandeaths are augmented into the Nega DenLiner's arsenal.
- Gigandeath Heaven (ギガンデスヘブン, Gigandesu Hebun?)
- Stats
- Appearances: 2, 14, 22, 34, & Kamen Rider Den-O & Kiva The Movie: Climax Deka
- Myth/legend: Ziz
An aerial Gigandeath, Heaven resembles a bird with elements of a bat and a wasp.
- Gigandeath Hades (ギガンデスハデス, Gigandesu Hadesu?)
- Stats
- Appearances: Episodes 6, 14, & Kamen Rider Den-O & Kiva The Movie: Climax Deka
- Myth/legend: Leviathan
An aquatic Gigandeath, the eel-like Hades combines the elements of various sea creatures and is able to fly.
- Gigandeath Hell (ギガンデスヘル, Gigandesu Heru?)
- Stats
- Appearances: Episodes 10, 22, 34, & Kamen Rider Den-O & Kiva The Movie: Climax Deka
- Myth/legend: Behemoth
A terrestrial Gigandeath, Hell combines the elements of an ox, an elephant, and a large cat. It possesses great speed and a thick hide.