Here are the characters for Kishin Douji Zenki
- Voiced by (as Big Zenki): Jurota Kosugi (Japanese), Robert Buchholz (English), José Arenas (under the name José Luis Reza) (Latin-American Spanish)
- Badass Adorable
- Bishounen: When he transform.
- HeelFace Turn
- Jerk with a Heart of Gold
- Older Alter Ego: He may look like a wimp but when he transforms he's a big muscular man.
- Platonic Life-Partners: With Chiaki.
- Platonic Life-Partners: With Zenki.
- Voiced by: Shou Saitou (Japanese), Catherine Luciani (English), Ángela Villanueva (Latin-American Spanish)
- Voiced by: Eiji Maruyama (Japanese), Doug Stone (English), Ricardo Lezama (Latin-American Spanish)
- Voiced by: Yuji Ueda (Japanese), Jeff Nimoy (English)
- Voiced by: Akemi Okamura(Japanese), Alice Farinas (English), Martha Ceceña (Latin-American Spanish)
- Voiced by: Kiyoyuki Yanada (Japanese), Jorge Ornelas (Latin-American Spanish)
Akira aka Gouki
- Voiced by: Minami Takayama (Japanese)
- Voiced by: Yuri Amano (Japanese)
- Voiced by: Yuri Amano (Japanese), Jessica Gee (English), Catalina Músquiz (Latin-American Spanish)
- Voiced by: Shigezo Sasaoka (Japanese), Richard Epcar (English), Miguel Ángel Sanromán (Latin-American Spanish)
- Voiced by: Megumi Ogata (Japanese), (English), Elena Ramírez (Latin-American Spanish)
- Voiced by: Kouji Tsujitani (Japanese), Daniel Abundis (Latin-American Spanish)
- Voiced by: Michael Sorich (English), Armando Réndiz (Latin-American Spanish)
The Golden Dragon
- Voiced by: Kan Tokumaru (Japanese)