PTU Online

Simon Yam - Sergeant Mike Ho, Maggie Siu - Kat (as Maggie Shiu) , Suet Lam - Sergeant Lo Sa (as Lam Suet) , Ruby Wong - Inspector Leigh Cheng, Raymond Ho-Yin Wong - Supervisor Wong (as Raymond Wong) , Eddy Ko - Eye Ball (as Ko Hung) , Hoi-Pang Lo - Bald Head (as Loi Hoi Pang) , Jerome Fung - Sergeant Fung, Frank Michael Liu - Triad (as Frank Liu) , Chi-Ping Chang - Insp. Chan's subordinate (as Chi Ping Cheung) , Soi Cheang - Undercover cop (as Pou-Soi Cheang) , Moon-Yuen Cheung - PTU Orderly (as Kenneth Cheung) , Chi-Shing Chiu - Ponnytail, Wai-Kwok Kwok - , Roderick Lam - Mike's team member