Doctor Steel

Takeru Yamatone

Dr. Yamatone

Nagisa Shiratori/Nagisa Ootori

Taiyō Mukai

Doumyouji Tsukasa

Hanazawa Rui

Maki Amakasu

Keisuke Saji

Kikaider / Jiro

Kimie Nakaoka

Yukiko Muromachi

Hikari Hanazono

Kei Takashima

Chitose Saiga

Reito

Rieko Sakamoto

Ms. Rieko Sakamoto

Yoshio Kawabata

Shoutarou Kaneda

Isshinsai Ogata

Shigure Kousaka

Shio Sakaki

Shigure Kosaka

Sakaki Shio

Natsuki Kisumi

Rina Takaoka

R

R. Ichirō Tanaka

Tetsuichirou Kurumada