Andy Lau

Dr. Ko / Derek Hui

Charlie Yeung

Tse Yuen Sam

Charlene Choi

Zi Qing

Anthony Wong Chau-Sang

Dr. Lip

Lam Suet

Ko's Colleague

Andrew Lin Hoi

Benz Hui Siu-Hung

Zi Qing's Father

Teddy Lin

Joe Cheung Tung-Cho

Gigi Wong