All Cast
Stephen Fung
H20
Ken Chang Tzu-Yao
Harry / Sammy
Angelica 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 Chui
