Do Your Best, Tetsu-chan Robot

Daisuke Shima

Yusuke Amamiya / Red Falcon

Kazuhiko Nishimura

Jo Oohara / Yellow Lion

Megumi Mori

Megumi Misaki / Blue Dolphin

Seiro Yamaguchi

Tetsuya Yano / Black Bison

Jin Kawamoto

Jun'ichi Aikawa / Green Sai

Makoto Kousaka

Colon (voice)

Jouji Nakata

Great Professor Bias

Yutaka Hirose

Kenji Tsukigata / Doctor Kemp

Akiko Amamatsuri

Rui Senda / Doctor Mazenda

Toru Sakai

Goh Omura / Doctor Obler

Takeshi Kuwabara

Narrator