梁家輝

Inspector Tang

Joyce Ni Shu-Chun

彭健新

Fire Unicorn

太保

Tai Bo

曹查理

Charles

莊文清

Mrs. Cow

Tsang Dao-may

Hon Yee-Sang

Tang's assistant

Christopher Durkin

Inspector Caine

David Wu

李海生

陸劍明

Man in toilet

Wu Chia-Hsiang

Cleaner at police station

唐基明

陳國權

Mr. Cow

Lau Hung-Chuen