Tony Leung Ka-Fai

Inspector So

鄭裕玲

Ching

Cheng Pak-Lam

Berlin

吳孟達

Uncle Tat

Do Siu-Chun

Cousin

李賽鳳

Woo Shiu Fung/Mosquito Paper

龍天生

Seng

曹榮

Lollipop

李道瑜

Doctor

Yau Gin-Gwok

Diamond thief leader

蔡國強

Keung

鄧超友

Diamond Theif

Won Jin

Luk's Mute Sifu

陸劍明

Mahjong Player Luk

梁啟智

Mahjong Player

Mak Shu-San

Mahjong Player

Wong Man-Shing

Furniture Mover

Jack Wong Wai-Leung

Drug Trafficker

Joe Chu Cho-Kuen

Drug Trafficker

譚偉民

Drug Buyer

陳世騰

Security Guard

Choi Kwok-Ping

Armed Security Guard

胡榮達

張旭燊

Anti-Narcotic Cop