Andy Lau as Lee Rock

Sharla Cheung as Grace Pak

Chingmy Yau as Rose

Ng Man-Tat as Piggy

Paul Chun Pui as Sergeant Ngan Tung

Kwan Hoi-San as Sergeant Chan

Michael Chan Wai-Man as King Crab

Tam Sin-Hung as Mrs. Chan

James Tien Chun as Silverfish

Lung Fong as Master Snake

Victor Hon Kwan as Hau

Lee Siu-Kay as Drill Officer

Eddy Ko Hung as Police Instructor

Wong Yat-Fei as Rose's Father

Jamie Luk Kim-Ming as Little Brother Ma

Louis Roth as Commissioner Alan

Chun Wong as Big Brother Ma

Garry Chan Chi-Shing as

Ricky Wong Chun-Tong as

William Ho as Gambling den boss at Rock's meeting

Ridley Tsui Bo-Wah as Rascal at Nightclub

Paco Yick Tin-Hung as

Adam Chan Chung-Tai as

Lam Kai-Wing as

Bill Lung Biu as

Leung Gam-San as

Ken Yip Wing-Kin as

Dave Lam Ching as