Louis Koo as Au Chi Yuen / Mak Chun Wing

Sean Lau Ching-Wan as Suchat

Aaron Kwok as Cheung Kin Heng / Billy

Alex Fong Chung-Sun as Police Chief Superintendent

Edward Chui Wai-Tung as James

Gallen Lo Ka-Leung as The Commander

Tse Kwan-Ho as Mee Noi

Power Chan Kwok-Pong as So Chi Leung

Timmy Hung Tin-Ming as Johnny

Lam Suet as Brother Big

Wilfred Lau Ho-Lung as Junior

James Kazama as Curry

Ben Yuen Foo-Wah as Doctor

Kumer So as Punky

Eddie Pang Wai-On as Speedy

Deon Cheung Chung-Chi as Goofy

Yang Caiyu as Noon

Bowie Chan Wing-Wai as Suchat's Man

Jacky Lo as Suchat's Man

Singh Hartihan Bitto as Disco Goer

Danny Yuen Chi-Kin as

Lam Kwok-Kit as

Mak Chi-Chiu as Police Officer

Wong Kwok-Pong as CID Officer

Yau Pak-Lam as Car Mechanic

Pong Yu-Hin as Car Mechanic

Yip Hing-Tim as Sauna Staff

Mac Ng as CID Officer

Leo Lo Hoi-Ying as CID Officer

So Wai-Nam as

Lui Siu-Ming as

Lee King-Kuen as Police Officer

Tang Tsz-Chun as CID Officer

Jessica Lai as TV Reporter

John Ho as Disco Bartender