Alfred Cheung Kin-Ting

as Inspector Hou Shui Ken

Chingmy Yau Suk-Ching

as Kwan Tak Hing / Ng Siu Yuen

Sharla Cheung

as Lam Moon Shang / Dreamy

Aaron Kwok Fu-Shing

as Ace / Doggie

Richard Ng Man-Tat

as Blackie Tat

Gabriel Wong Yat-Shan

as Turtle

Barry Wong Ping-Yiu

as Commissioner Wong

Sarah Lee

as Big Sister

Michael Chan Wai-Man

as Teacher Chan Wai Ha

Yen Shi-Kwan

as Ti Chun Tung

Tse Wai-Kit

as Arnold

Yuen Cheung-Yan

as Doggie's Dad

Chang Gan-Wing

as Chemistry Teacher

Yam Wai-Hung

as Mad Bull

Cheung Kwok-Wah

as Mad Bull's Thug

Dennis Chan Kwok-San

as Headmaster

Peggy Lee Kam-Man

as Spider Woman / New Comm. Chu

Patrick Hon Jun

as Brother On

Lam Shung-Ching

as Hua Chi

Jack Wong