Louis Fan Siu-Wong

as Ricky

Fan Mei-Sheng

as Assistant Warden

William Ho

as Warden Sugiyama

Gloria Yip Wan-Yee

as Keiko

Yukari Ôshima

as Huang Chung / West Block

Frankie Chan Chi-Leung

as Hai / North Block

Kôichi Sugisaki

as Tarzan San Tai / East Block

Wong Kwai-Hung

as Blondie Shiraga / South Block

Tetsuro Tamba

as Master Zhang

Chang Gan-Wing

as Lao Ma

Power Chan Kwok-Pong

as Hai's Godson

Wong Kwok-Leung

as Prison Warden's Son

Wong Chi-Keung

as Guan Dao / Dragon Gang Head

Phillip Kwok Chui

as Ah Guang / Ricky's Mate

Lam Kai-Wing

as Wild Cat / Store Leader

Chan Ging

as Centipede / Wild Cat's Thug

Bill Lung Biu

as Ye Ming / Wild Cat's Thug

Lam Suet

as Wild Cat's Thug / Warden Sugiyama's body double

Chiu Chi-Shing

as Prisoner

Kong Long

as Prison Guard

Jackson Ha Chak-Shun