Aaron Kwok as Cheung Kin Heng / Billy

Louis Koo as Au Chi Yuen / Mak Chun Wing

Sean Lau as Suchat

Yang Caiyu as Noon

Gallen Lo Ka-Leung as The Commander

Tse Kwan-Ho as Mee Noi

Alex Fong Chung-Sun as Police Chief Superintendent

Lam Suet as Brother Big

Power Chan as So Chi Leung

Timmy Hung Tin-Ming as Johnny

Wilfred Lau Ho-Lung as Junior

Kumer So as Punky

James Kazama as Curry

Ben Yuen as Doctor

Eddie Pang Wai-On as Speedy

Deon Cheung Chung-Chi as Goofy

Edward Chui Wai-Tung as James

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