Andy Lau Tak-Wah

Sas / Puppy

莫少聰

Chow Chor-San

羅美薇

May

成奎安

Big Skin Chuen

柯受良

Killer

王鍾

Officer Chow Wing

黎漢持

Brother Fu

鮑起靜

Chow Man Sau

Stephen Chang Gwong-Chin

Yellow

秦貴寶

Fu's Thug

Ho Kit

Lam So Mei

Tam Siu-Ying

May's Mother

韓幸

Big Brother

Fong Ka-Wai

Mok Hon-Kei

陳景祥

May's Father

Ngai Ming-Yiu

冼灝英

Yiu

簡錫明

Mr Kan

張贊生

Police Officer