Danny Lee
— Bee / Lee Ka Yin
郭富城
— Lee Ka Wah
Sharla Cheung
— Siu Hung
Wu Ma
— Uncle Kau
成奎安
— Superman
柯受良
— Hark
焦姣
— Bee's Mother
駱應鈞
— Chan Kwan
Lucy Liu
— Donna
黎彼得
— Himself
陳斐烈
— Self
黃柏文
— Officer Wong
紀家發
James Ha Chim-Si
— Hark's thug
王俊棠
— Guest of Bee's nightclub
雷宇揚
— Contest emcee
熊欣欣
— Hark's thug
朱繼生
— Pub guest fighting Bee
陳志輝
— Pub guest fighting Bee
林敬剛
— Student
Law Shu-Kei
陳達廣
錢文錡
林國傑
— Pub guest fighting Bee
John Wakefield
— Attorney
張浚鴻
— Hark's thug
余慕蓮
