Toshio Kurosawa as Professor Shiraki

Mariko Mochizuki as Kumi Saijou

Kunie Tanaka as Dr. Shimomura

Shin Kishida as The Principal

Katsuhiko Sasaki as Professor Yoshi

Mio Outa as Yukiko Mitamura

Mika Katsuragi as Principal's Wife

Keiko Aramaki as Kyôko Hayashi

Midori Takei as The Girl in Flashback

Yūnosuke Itō as Takakura / Detective

Yasuko Agawa as Keiko Nonomiya, Student in Blue Negligee

Yasuko Agawa as Keiko Nonomiya

Susugu Katayama as Shimazaki- Man in Hospital

Haruo Suzuki as Guard in the school

Tadao Futami as Station Employee

Kazuya Oguri as Hosoya - Acting Principal

Toshio Hosoi as Psychiatric Nurse

Seiji Yoshida as Detective Tsuchiya

Rokumi Hosaka as Female Student B

Mariko Yoshida as Female Student A

Roger Breen as Caucasian

Kanzō Uni as Fight Double

Yūnosuke Itō as Detective Takakura

Barry Haigh as Professor Shiraki (voice) (uncredited)

Matthew Oram as Dr. Shimomura / Principal (voice) (uncredited)