梁家輝

Wang Wei / Andy

洪金寶

Liu Hsi-Chia / John

成龍

Da Chui / Steve

劉德華

Iron Ball / Boss Lee

王羽

Kui / Lucas

庹宗華

Chu / Charlie

高捷

Lin

柯俊雄

Prison Director

張國柱

Seng

葉全真

Yua Fong

方正

Prisoner

秦豪

Iron Ball's Assistant

曹健

Fong's Father

Ngai Man-Yin

Police Chief

杜福平

Prison Guard

Yang Hsiung

Lin's Friend

虞金寶

Yi Yuan

Old Prisoner

Wang An

金萬希

(uncredited)

初本科

Prisoner (uncredited)

Subas Herrero

(uncredited)

Ho Kang

Prisoner (uncredited)

Hu Han-Chang

Prisoner (uncredited)

戽斗

Prisoner (uncredited)

黃正霖

Prison Guard (uncredited)

顧寶明

Prison Guard in the Kitchen (uncredited)

關洪

Drug Dealer (uncredited)

黎強根

Iron Ball's Thug / Prisoner (uncredited)

盧惠光

Bodyguard (uncredited)

史亭根

Prisoner (uncredited)

曾明昌

Prisoner (uncredited)

王莱

Chu's Grandmother (uncredited)

王耀

(extra) (uncredited)

楊烈

Prisoner (uncredited)

Yeh Ching-Hui

(uncredited)

葉榮祖

Prisoner (uncredited)

Yu Sung-Chao

(uncredited)