Goh Omura / Doctor Obler / Obular Brain (voice)
Tetsuya Yano / Black Bison / Robo Brain (voice)
Kenji Tsukigata / Doctor Kemp / Terror Beast Brain (voice)
Yusuke Amamiya / Red Falcon
Jo Oohara / Yellow Lion
Megumi Misaki / Blue Dolphin
Jun'ichi Aikawa / Green Sai
Colon (voice)
Great Professor Bias
Rui Senda / Doctor Mazenda
Narrator
Guitar Brain (voice) / Engine Brain (voice)
Sword Brain (voice) / Invisible Brain (voice)
Transmission Brain (voice) / Shark Brain (voice)
Toshiko Omura
Gou Omura (child)
Fire Brain (voice) / Spirit Brain (voice)
Doctor Hoshi
Shosaburo
Kenichi
Bus Driver
Pig Brain (voice) / Poison Gas Brain (voice)
Mother / Woman
Rugby Player / Driver
