跟蹤

Simon Yam

Sergeant Wong Man-Chin / Dog Head

Tony Leung Ka-fai

Chan Chong-Shan / Hollow Man

Kate Tsui Tsz-Shan

Constable Ho Ka-Po / Piggy

Lam Suet

Ng Tung / Fatman

Maggie Shiu

Madam Fong

Eddie Cheung Siu-Fai

Chief Inspector Chan

Berg Ng Ting-Yip

Chan Chong-Shan's Gang Member

Wayne Lai Yiu-Cheung

Chan Chong-Shan's Gang Member

Samuel Pang King-Chi

Chan Chong-Shan's Gang Member

Susan Tse Suet-Sum

Master's Wife

Lau Kwok-Shing

Master

Wong Siu-Foon

IB Policeman