Toshio Kurosawa
Professor Shiraki
Seiji Yoshida
Detective Tsuchiya
Katsuhiko Sasaki
Professor Yoshi
Shin Kishida
The Principal
Kunie Tanaka
Dr. Shimomura
Kazuya Oguri
Hosoya - Acting Principal
Yūnosuke Itō
Takakura / Detective
Yūnosuke Itō
Detective Takakura
Haruo Suzuki
Guard in the school
Keiko Aramaki
Kyôko Hayashi
Mariko Mochizuki
Kumi Saijou
Tadao Futami
Station Employee
Toshio Hosoi
Psychiatric Nurse
Mika Katsuragi
Principal's Wife
Midori Takei
The Girl in Flashback
Tomoe Mari
Keiko Nonomiya, Student in Blue Negligee
Barry Haigh
Professor Shiraki (voice) (uncredited)
Matthew Oram
Dr. Shimomura / Principal (voice) (uncredited)
Susugu Katayama
Shimazaki- Man in Hospital
Rokumi Hosaka
Female Student B
Mariko Yoshida
Female Student A