Takashi Otsuka (大塚 崇, Ōtsuka Takashi^?), better known by his ring name Alexander Otsuka, is a Japanese mixed martial arts fighter and professional wrestler. He competes in the Light Heavyweight division. He won his last fight at VFX - Vale Tudo Fighters Mexico against Masada Masada on May 27, 2006. His ring name is a homage to Alexander Karelin.

Nobuhiko Takada (Japanese: 髙田延彦, born April 12, 1962) is a Japanese mixed martial arts fighter and professional wrestler. He is best known for helping to popularize shoot-style professional wrestling, as one of the biggest stars of the Universal Wrestling Federation and Union of Wrestling Force International in the '80s and '90s. He has also competed for PRIDE Fighting Championships and New Japan Pro Wrestling. Presently, he is the owner of the HUSTLE Wrestling Organization.

Nobuhiko Takada made his professional wrestling debut in 1981 against Norio Honaga, for New Japan Pro Wrestling, where he started his career as a Junior Heavyweight. He left NJPW in 1984, along with Rusher Kimura, Akira Maeda, Ryuma Go, Mach Hayato, and Gran Hamada, to form the original Universal Wrestling Federation.

The original UWF dissolved in 1986. Takada and Akira Maeda returned to NJPW and formed a UWF stable. Only a few months later, Takada defeated Shiro Koshinaka to capture the IWGP Junior Heavyweight Championship, which he held for four months. In 1987, Takada moved to the Heavyweight ranks. Along with Akira Maeda, he won the IWGP Tag Team Championship from rival, Koshinaka & Keiji Mutoh. He left NJPW in 1988 to form the second incarnation of the Universal Wrestling Federation called Newborn UWF, becoming one of its top stars.

Guy Mezger (born January 1, 1968) is a retired American martial artist who competed in professional combat sports ranging from full contact karate, kickboxing, and boxing, but is most recognized as a mixed martial arts fighter (retired from competition January 25, 2005). He is associated with Lion's Den Dallas. Mezger was a champion in mixed martial arts in two different promotions, the UFC and Pancrase. He holds wins over Tito Ortiz, Masakatsu Funaki, Yuki Kondo, Semmy Schilt, and Minoru Suzuki. He's also known for being despised by the PRIDE judges.

Mezger has trained with many great martial arts competitors and trainer/instructors; his main trainers have been Vince Tamura (Judo), Willie Thompson (Wrestling), Billy "Jack" Jackson (Kickboxing), and Ken Shamrock (Submission Fighting/Pancrase/Mixed Martial Arts). Mezger has co-written one book, The Complete Idiot's Guide to Kickboxing, and had an uncredited speaking role in the first-season episode of Walker, Texas Ranger Night of the Gladiator.

Anderson da Silva (Portuguese pronunciation: [ˈɐ̃deʁsõ ˈsiwvɐ]; born April 14, 1975) is a Brazilian mixed martial artist. He is the current UFC Middleweight Champion and the promotion's longest reigning champion. With 14 consecutive wins and 9 title defenses, Silva holds the longest winning streak and title defense streak in UFC history.

Silva is ranked as the number one Middleweight in the world by multiple publications, and is the consensus No. 1 pound-for-pound fighter in the world according to ESPN, Sherdog, Yahoo! Sports, MMAFighting.com and other publications. UFC president Dana White has proclaimed Silva as "the greatest mixed martial artist ever."^{[undue weight? – discuss]} Silva is also the last Cage Rage Middleweight Champion and a former Shooto Middleweight Champion. Besides the UFC and Cage Rage, Silva has fought for a number of other MMA promotions including the Pride Fighting Championships, Shooto and Rumble on the Rock.

Although known primarily for his mastery of Muay Thai striking, Silva is also a Brazilian Jiu-Jitsu blackbelt, a rank he earned in 2006 from Antônio Rodrigo Nogueira who follows Gracie Lineage through Carlson Gracie, like Murilo Bustamante and the Brazilian Top Team. He began martial arts training at the age of 14, training Tae kwon do and earning a black belt by the age of 18. He is also a black belt in Judo and a yellow rope in Capoeira.

Daisuke Ikeda (池田大輔; Ikeda Daisuke, born February 13, 1968) is a Japanese professional wrestler who is currently wrestling in the Independent circuit in Japan.

Ikeda was trained by Yoshiaki Fujiwara and joined Fujiwara's promotion Fujiwara Gumi in 1993. In 1995 he moved to BattlARTS. As one of the few heavyweights competing in a promotion made up mostly of junior heavyweights (compare Jinsei Shinzaki in Michinoku Pro Wrestling), he often had to look out of the promotion for challenges, including Shinzaki and FMW talent such as Hayabusa, Masato Tanaka, and Hiromichi Fuyuki.

In 1998 he started making appearances in All Japan Pro Wrestling, and finally in early 2000 he joined the promotion as a full time worker. He did not stay long as later that year he left for Mitsuharu Misawa's new promotion Pro Wrestling Noah. He briefly joined Misawa's Wave faction, but left soon after. On June 1, 2004 he beat Takeshi Morishima for the WLW Heavyweight Championship. In December 2004 he announced his departure from Noah. He now wrestles in the Japanese Independent circuit, and runs his own promotion, Fu-Ten Promotion.