Oda Nobunaga (織田 信長,  Oda Nobunaga (help·info)^?, June 23, 1534 – June 21, 1582) was the initiator of the unification of Japan under the shogunate in the late 16th century, which ruled Japan until the Meiji Restoration in 1868. He was also a major daimyo during the Sengoku period of Japanese history. His opus was continued, completed and finalized by his successors Toyotomi Hideyoshi and Tokugawa Ieyasu. He was the second son of Oda Nobuhide, a deputy shugo (military governor) with land holdings in Owari Province. Nobunaga lived a life of continuous military conquest, eventually conquering a third of Japan before his death in 1582. His successor, Toyotomi Hideyoshi, a loyal Oda supporter, would become the first man to unify all of Japan, and was thus the first ruler of all Japan since the Ōnin War.

Oda Nobunaga was born on June 23, 1534, and was given the childhood name of Kippōshi (吉法師^?). He was the second son of Oda Nobuhide. Through his childhood and early teenage years, he was well known for his bizarre behavior and received the name of Owari no Ōutsuke (尾張の大うつけ^?, The Fool of Owari). With the introduction of firearms into Japan, though, he became known for his fondness of Tanegashima firearms. He was also known to run around with other youths from the area, without any regard to his own rank in society. He is said to be born in Nagoya Castle, although this is subject to debate. It is however certain that he was born in the Owari domain. In 1574 Nobunaga accepted the title of Kuge (or Court Noble), then in 1577 he was given the title of Udaijin (or Minister of the Right), the third highest position in the Imperial court.

Date Masamune (伊達 政宗^?, September 5, 1567 – June 27, 1636) was a regional strongman of Japan's Azuchi-Momoyama period through early Edo period. Heir to a long line of powerful daimyo in the Tōhoku region, he went on to found the modern-day city of Sendai. An outstanding tactician, he was made all the more iconic for his missing eye, and Date was often called dokuganryū (独眼竜), or the "one-eyed dragon".

As a legendary warrior and leader, Masamune is a character in a number of Japanese period dramas. He was played by Ken Watanabe in the popular 1987 NHK series Dokuganryu Masamune.

Date Masamune was the eldest son of Date Terumune, born in Yonezawa Castle (in modern Yamagata Prefecture). At the age of 14 in 1581 Masamune led his first campaign, helping his father fight the Sōma family. In 1584, at the age of 17, Masamune succeeded his father, Terumune, who chose to retire from his position as daimyo. The Date family was founded in the early Kamakura period by Isa Tomomune, who originally came from the Isa district of Hitachi Province (now Ibaraki Prefecture). The family took its name from the Date district (now Fukushima Prefecture) of Mutsu Province, which had been awarded to Isa Tomomune by Minamoto no Yoritomo, the first Kamakura shogun, for his assistance in the Genpei War (1180–85) and in Minamoto no Yoritomo’s struggle for power with his brother, Minamoto no Yoshitsune. Masamune's army was recognized by its black armor and golden headgear.

Sanada Saemon-no-Suke Yukimura (真田 左衛門佐 幸村, Sanada Yukimura^?, 1567–June 3, 1615 (Keichō 20. 5.7)) was a Japanese samurai, second son of the Sengoku period daimyo Sanada Masayuki (1544–1611). His proper name was Sanada Nobushige (真田 信繁), named after Takeda Shingen's younger brother Takeda Nobushige, who was a brave and respected warrior. He and his father were known as excellent military tacticians. Though their army was very small, they won many battles in which they were outnumbered. Sanada Yukimura was called "A Hero who may appear once in a hundred years" and "Crimson Demon of War", and the famed veteran of the invasion of Korea, Shimazu Tadatsune, called him the "Number one warrior in Japan" (日本一の兵^?).

He was the second son of Sanada Masayuki, his elder brother was Sanada Nobuyuki. He was married to Akihime (Chikurinin), a foster-daughter of Ōtani Yoshitsugu. They had two sons, Daisuke (Yukimasa) and Daihachi (Morinobu).

In 1575, the Battle of Nagashino claimed the lives of two of Sanada Masayuki's elder brothers. Masayuki, previously serving Takeda Shingen and Takeda Katsuyori as a retainer, inherited the Sanada clan and left for Ueda Castle. Yukimura also went, taking the Sanada name as well.

Honda Tadakatsu (本多 忠勝^?, March 17, 1548 – December 3, 1610), also called Honda Heihachirō (本多 平八郎), was a Japanese general (and later a daimyo) of the late Sengoku through early Edo period, who served Tokugawa Ieyasu. Honda Tadakatsu was one of the Tokugawa Four Heavenly Kings along with Ii Naomasa, Sakakibara Yasumasa and Sakai Tadatsugu.

A native of Mikawa Province in Japan, he lived during the Azuchi-Momoyama and Edo periods. Ieyasu promoted him from daimyo of the Ōtaki han (100 000 koku) to the Kuwana han (150 000 koku) as a reward for his service. In addition, his son Honda Tadatomo became daimyo of Ōtaki. In 1609, he retired, and his other son Tadamasa took over Kuwana. His grandson, Tadatoki, married the granddaughter of Tokugawa Ieyasu, Senhime. Despite his years of loyal service, Tadakatsu became increasingly estranged from the Tokugawa shogunate (bakufu) as it evolved from a military to a civilian political institution. This was a fate shared by many other warriors of the time, who were not able to make the conversion from the chaotic lifetime of warfare of the Sengoku period to the more stable peace of the Tokugawa shogunate.

Terius Youngdell Nash (Born September 20, 1977), better known by his stage name The-Dream, is an American singer-songwriter and record producer. He is known for co-writing chart topping hits such as "Baby" for Justin Bieber, "Umbrella" for Rihanna and "Single Ladies (Put a Ring on It)" for Beyoncé, as well as for his three solo albums, Love Hate, Love vs. Money, and Love King.

Terius Nash was born in Rockingham, North Carolina and moved with his mother, Reva Nash, to Atlanta at the age of 3. He played trumpet, drums, and guitar as a child. His mother died in 1992 when Nash was fifteen years old, an event which would inspire him to write songs. He states that the death of his mother gave him a "soft spot" for women, which he credits to his desire to write songs about female empowerment such as Rihanna's "Umbrella". He moved in with his grandfather, a concrete mason who instilled a strong work ethic in young Nash. Of his grandfather, Nash recalls "He came out of a bad time for blacks in the South, but even though we lived in the hood, we had a boat, some cars and a house that was paid for. So I’ve always had a different outlook on life. There’s nothing I can’t do."