Stephen Fung

H20

Ken Chang

Harry / Sammy

Ken Cheung Chi-Yiu

Harry / Sammy

Angelica Lee

Katy Lam

Eileen Tung

Supt. Margarita So

Ken Wong

Sunny

Andrew Lin

Terrorist leader

Cyrus Chow

Jason

Tong Law-Man

Landon Fu

Chan Yam

Mr Fu Hang

Wai Gei-Shun

Asst. Commissioner

Simon Lui Yu-Yeung

William Hung

Spencer Lam

H20's father

Mannor Chan

H20's mother

Astrid Chan

Sammy's sister

Mary Hon

Sammy's mother

Law Saan

Sammy's father

Lam Suet

Raymond Wong Ho-Yin

Phillip Chung-Fung Kwok