Issei Futamata
— Asagaya Takao (voice)
Miyoko Aoba
— Nakano Koenji (voice)
高田由美
— Komaba Ikenoue (voice)
Hiroshi Kiyohara
— Komaba's Stepbrother (voice)
Ochiai Bo
— Dr. Toyama (voice)
Tatsuya Hara
— Big Man / Dr. Toyama's Assistant (voice)
Yozo Uno
— Hirota (voice)
Kazuko Okada
— Female Student (voice)
Kazuko Masu
— Female Student (voice)
Nakahata Kiyoko
— Female Student (voice)