Geek-Boy Obular

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

Masaya Taki

Study Brain (voice)

Nami Munakata

Toshiko Omura

Toshihiko Nakano

Gou Omura (child)

Takeshi Inoue

Boy

Hiroyoshi Ishii

Boy

Yosuke Iizuka

Boy

Koichi Sudo

Boy