Nick Cheung Ka-Fai as Wong Yuen-yeung

Simon Yam as Inspector George Lam Ching-chung

Kay Tse as Ying Au-yeung

Janice Man as Zoe Tsui

Michael Wong as Han Tsui

Candice Yu On-On as Mrs. Tsui

Shawn Dou as young Wong Yuen-yeung

Gordon Liu Chia-Hui as Retired CID officer

Wong Ka-Lok as Young George Lam

Jun Kung as Former acquaintance of Eugene

Tian Zhuangzhuang as Former prison guard

Cheung Kwok-Keung as CID

Felix Lok Ying-Kwan as Chief Yu

Ken Hung as Zoe's classmate

Cherry Ngan as George's daughter

Cyrus Chow as Eugene's younger brother

Yumiko Cheng as George's late wife

Hinson Chou Tsz Yeung as Detective Keung

Phat Chan as Detective Phat

Six Luk Ho-Ming as Coroner

Clifton Kwan as Detective

Mike Leeder as British Senior CID officer

Ken Lo Wai-Kwong as

Mason Chiu as Correctional Services Officer

Paul Chun Pui as