Donnie Yen

Leung / Brett Chan

吳家麗

Lisa

盧惠光

Feng Li

胡慧中

Superintendent Wu

Fujimi Takajo

Wendy

Michael Woods

Stephen's man with remote toys

John Salvitti

Stephen

Tin Ching

Lisa's father

Hsu Hsia

Professor Wong

Tony Tam Chun-To

Peter Tang

梁家仁

Policeman

劉家輝

Policeman

Chu Tit-Wo

Gang boss

Chui Fat

Police chief

Lung Sang

Policeman

Hsu Hsia