Infernal Affairs

Andy Lau

Lau Kin-Ming

Tony Leung Chiu-wai

Chan Wing-Yan

Anthony Wong

Wong Chi-Shing

Eric Tsang

Hon Sam

Kelly Chen

Lee Sum-Yee

Sammi Cheng

Mary

Edison Chen

Lau Kin-Ming (young)

Shawn Yue

Chan Wing-Yan (young)

Chapman To

"Silly" Keung

Dion Lam Dik-On

Del Piero

Gordon Lam

Inspector B

Wan Chi-Keung

Officer Leung

Berg Ng

Senior Inspector Cheung

Tony Ho

Suspect

Xiao Yaxuan

May

Courtney Wu

Stereo Shop Owner

Victy Wong Yin-Keung

CIB Team

Eric Li Tin Cheung

Double 8

So Wai-Nam

Sam's Follower