Daisuke Ono

as Susumu Kodai (voice)

Houko Kuwashima

as Yuki Mori (voice)

Kenichi Suzumura

as Daisuke Shima (voice)

Takayuki Sugo

as Juzo Okita (voice)

Shigeru Chiba

as Dr. Sakezo Sado (voice)

Hochu Otsuka

as Shiro Sanada (voice)