Louis Koo

as Tyler

Sean Lau Ching-Wan

as Johnson Cheng

Carina Lau

as Colonel Tam Bing

Philip Keung Ho-Man

as Lieutenant Taron Yau Tai Long / Skunk

Gardner Tse Kwan-Ho

as Dr. Chan Chong-Chung

Janice Wu

as Lucy

Wan Guopeng

as Connor Kwong

Nick Cheung Ka-Fai

as Commander-in-Chief Sean Lee

Ng Siu-Hin

as Citizen

Ariel So Yuet-Yin

as Sissy

He Ziming

as Lincoln

Steve Chan Wai-Hung

as ACU Soldier

Ken Law Ho-Ming

as ACU Soldier

Hedi He Guoxuan

as Major

Tony Wu Tsz-Tung

as CC Controller

Kevin Chu Kam-Yin

as Weather Correspondent

Lau Ho-Leung

as DVD Buyer

Cheng Xiaoxia

as Pansy

German Cheung Man-Kit

Pancy Chan Pui-Sze

Jack Lai Jan-Lung