Louis Koo

~ as ~

Ah Sam

Simon Lui Yu-Yeung

~ as ~

Wah Sir

Frankie Ng Chi-Hung

~ as ~

Oscar Leung Lit-Wai

~ as ~

Gregory Lee

~ as ~

Keith Ng Shui-Ting

~ as ~

Cheung Sir

Lily Chung Suk-Wai

~ as ~

Mother

Michael Tse Tin-Wah

~ as ~

Fat B

Victor Hon Kwan

~ as ~

Cheung King-Yip

~ as ~

Juvenile offender