Louis Fan Siu-Wong
Ricky

Fan Mei-Sheng
Assistant Warden

William Ho
Warden Sugiyama

Gloria Yip Wan-Yee
Keiko

Yukari Ôshima
Huang Chung / West Block

Frankie Chan Chi-Leung
Hai / North Block

Kôichi Sugisaki
Tarzan San Tai / East Block

Wong Kwai-Hung
Blondie Shiraga / South Block

Tetsuro Tamba
Master Zhang

Chang Gan-Wing
Lao Ma

Power Chan
Hai's Godson

Wong Kwok-Leung
Prison Warden's Son

Wong Chi-Keung
Guan Dao / Dragon Gang Head

Phillip Kwok
Ah Guang / Ricky's Mate

Lam Kai-Wing
Wild Cat / Store Leader

Chan Ging
Centipede / Wild Cat's Thug

Bill Lung Biu
Ye Ming / Wild Cat's Thug

Lam Suet
Wild Cat's Thug / Warden Sugiyama's body double

Chiu Chi-Shing
Prisoner

Kong Long
Prison Guard

Jackson Ha Chak-Shun