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 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 as