المحقق المجنون

Johnnie To

Director

Ka-Fai Wai

Director

Ching Wan Lau

Bun

Andy On

Inspector Ho Ka-on

Ka-Tung Lam

Ko Chi-wai

Kelly Lin

May Cheung

Kwok-Lun Lee

Wong Kwok-chu

Choi-ning Lee

Gigi

Flora Chan

May Cheung - in Bun's eyes

Eddie Cheung

Violent Man - Ko's Inner Personality

Suet Lam

Fatso - Ko's Inner Personality

Jay Lau

Calculating Woman - Ko's Inner Personality

Eddy Ko

The Chief

Jo Kuk

Cunning Woman - Ho's Inner Personality

Ling-To Yuen

Policeman

Jonathan Yat-Sing Lee

Weak Boy - Ho's Inner Personality

Ronald Yan

Ko's Boss

Wah-Wo Wong

Restaurant Manager

Apple Chow

7-11 Worker

Jackson Ha

Ko's Colleague

Ka-Fai Wai

Writer

Kin-Yee Au

Writer