Simon Yam
Capt. Wong Man Chin / Dog Head
Tony Leung Ka-fai
Chan Chong-shan / Hollow Man
Kate Tsui
Peggy / Piggy / Constable Ho Ka Po
Maggie Shiu
Madam Fong
Lam Suet
Ng Tung / Fatman
Eddie Cheung
Snr Insp. Chan
Jimmy Wong Wa-Wo
Wo / IB cop
Him Law
Snakie / SU agent
Berg Ng
Shan's Gang Member
Yiu-Cheung Lai
Shan's Gang Member
Samuel Pang
Shan's Gang Member
Frank Liu Zong-Ji
Shan's Gang Member
Chiu Chi-Shing
Shan's Gang Member
Lau Kwok-Shing
Master
Susan Tse
Master's Wife
Wong Siu-Foon
IB Policeman
Tam Kon-Chung
IB Policeman (uncredited)
Hung Wai-Leung
Kidnapper
Johnny Wong Yin-Ming
Man Eating in 7-Eleven (uncredited)
Cheung Wing-Cheung
Loan Shark (uncredited)
Sherwin Ming Tak-Fung
Sergeant Wong