Tony Leung Ka-Fai
Inspector Tang
彭健新
Fire Unicorn
太保
Tai Bo
曹查理
Charles
莊文清
Mrs. Cow
Hon Yee-Sang
Tang's assistant
Christopher Durkin
Inspector Caine
陸劍明
Man in toilet
Wu Chia-Hsiang
Cleaner at police station
陳國權
Mr. Cow
Pan Yung-Sheng
Golden Mouse
Tsang Choh-Lam
Opium smoker detained at station
吳浣儀
Fa Dan Chun
張連平
Policeman
Lau Hung-Chuen
鬼綫人
Released
Bande-annonce
