Leon Lai Ming as Mac

Shu Qi as June

Jordan Chan Siu-Chun as Bird

Sam Lee as Sam

Michelle Saram as Michelle

Terence Yin Chi-Wai as Ah Lung

Kong Lung as Dr Y. T. Kam

Alex To as Soto

Ken Wong as Ah Wong

Lee Yiu-King as Ah Lok

Ng Yat-Saan as Dr Lee Man Chuen

Debbie Goh as Apple

Leon Head as Spencer Matheson

Tang Tai-Wo as Malaysian agent

Yiu Man-Kei as Malaysian agent

Choi Kin-Shing as Guard

Riezman Khuzaimi as Malaysian general

Michael Clements as Scientist