Tony Leung Ka-fai

Inspector Tang

Joyce Ni

Sally

Bennett Pang Kin-San

Fire Unicorn

Tai Bo

Tai Bo

Charlie Cho

Charles

Chong Man-Ching

Mrs. Cow

Tsang Dao-may

Hon Yee-Sang

Tang's assistant

Christopher Durkin

Inspector Caine

David Wu

Lee Hoi-Sang

Jamie Luk Kim-Ming

Man in toilet

Wu Chia-Hsiang

Cleaner at police station

Terry Tong

Alan Chan Kwok-Kuen

Mr. Cow

Yen Li

Johnny Lee Man-Yiu

Zebra Pan Yung-Sheng

Golden Mouse

Yat Boon-Chai

Yu Miu-Lin

Tsang Choh-Lam

Opium smoker detained at station

Fung Ging-Man

Anna Ng Yuen-Yee

Fa Dan Chun

Jonathan Chow

Bruce Mang Long

Joyce Ni Shu-Chun

Cheung Lin-Ping

Policeman

Eddie Chan Shu-Chi

Billy Lau