古天樂
— Tan
吳彥祖
— Tide Ho
譚耀文
— Mann
谷祖琳
— Sandy
駱應鈞
— Brother Chu
黃岳泰
— Lao Wu
張國柱
— Ho Chuen
Phyllis Quek
— Tan's Mother In Her Teens
Wrath James White
— Arion
白鹰
— Mr Ying
Park Ju-Chun
— Mr Ying's Korean Boxer
Ron Smoorenburg
— Mr Ying's White Boxer
鄭丹瑞
— Sandy's Eye Doctor
張瑞哲
— Marco
Chan Sang
— Gambler Always Bet On Tan
黃偉輝
— Underground Boxer
藍靖
— Underground Boxer
Jay Lau
— Underground Boxer
国建勇
— Underground Boxer
林仲岐
— Underground Boxer
陳士庭
— Tan's Doctor
Sze-To Yuk-Tung
— Policeman
Max Yip Biu-Kei
— Policeman
Bat Chin-Lung
— Thai Boxer
Siu Mou-Yan
— Marco's Receptionist
Chang Ka-Cheun
— Tan (Child)
Man Ching-Fung
— Tide (Child)
Yeung Chin-Fung
— Tan (Teen)
Yeung Yat-Fung
— Tide (Teen)
譚幹聰
— Chu's Thug