劉青雲

Inspector Chan Kwai Bun

安志傑

Inspector Ho Ka-on

林家棟

Ko Chi Wai

林熙蕾

May Cheung

李焯寧

Gigi

李國麟

Wong Kwok Chu

張兆輝

Violent Man - Ko's Inner Personality

林雪

Fatso - Ko's Inner Personality

劉錦玲

Calculating Woman - Ko's Inner Personality

Jeff Cheung Ka-Kit

Ko's Inner Personality

Lu Ching-Ting

Ko's Inner Personality

趙志誠

Ko's Inner Personality

洪偉良

Ko's Inner Personality

陳慧珊

May Cheung in Bun's Eyes

Jonathan Lee Yat-Sing

Weak Boy - Ho's Inner Personality

谷祖琳

Schemy Woman - Ho's Inner Personality

高雄

The Chief

Yuen Ling-To

Policeman

黃華和

Restaurant Manager

甄懋強

Chi-Wai's Boss

Apple Chow Suk-Wai

7-11 Worker

夏澤信

Ko's Colleague

Jack Lai

Ko's Colleague

Singh Hartihan Bitto

Naresh Sharma

王肇強

Policeman (uncredited)

雷小明

Mahjong Parlour's Staff (uncredited)

Mark Cheung Yiu-Fai

Mahjong Parlour Customer (uncredited)

鄭保瑞

Inspector Ho Ka-on (voice)

郭少芸

May Cheung (voice)

陳彼得

Cameo (picture in police file)

韋家輝

Director

杜琪峯

Director

趙志誠

Unit Manager

Martin Richard Chappell

Sound Designer

陳錦河

Production Design

向華強

Executive Producer

Kuk Kok-Leung

Line Producer

Tina Baz

Editor

韋家輝

Producer

Au Kin-yee

Screenplay

韋家輝

Screenplay

陳錦河

Art Direction

張世傑

Costume Design

杜琪峯

Producer

鄭兆強

Director of Photography

Midco Chu Wai-Fong

Makeup Artist

Xavier Jamaux

Original Music Composer

Mark Garbarino

Makeup Artist