Stephen Fung

H20

Ken Chang Tzu-Yao

Harry / Sammy

Lee Sin-Jie

Katy Lam

Eileen Tung Oi-Ling

Supt. Margarita So

Ken Wong

Sunny

Andrew Lin Hoi

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 Seung-Yi

H20's Father

Mannor Chan

H20's Mother

Astrid Chan Chi-Ching

Sammy's Sister

Mary Hon Ma-Lee

Sammy's Mother

Law Saan

Sammy's Father

Lam Suet

Raymond Ho-Yin Wong

Phillip Kwok

Joan Tong Lai-Kau

Kwok Man-Ki