Louis Koo

Harley

Billy Lau Nam-Kwong

Drug den boss

Max Zhang

Cat

Gordon Lam Ka-Tung

Bullhorn

Chen Kuan-Tai

Machete

Lo Hoi-Pang

Village head

Lau Shun

Elderly Lam

Sean Lau Ching-Wan

Chen Hua

Liu Chun-Hung

Big brother Ming

Justin Cheung Kin-Sing

Young detective

Deon Cheung Chung-Chi

Corrupt policeman

Raymond Chiu

Inspector Chen

Richard Ng Man-Tat

Uncle Bo

Nora Miao

Chen Hua's mother

Lawrence Ah Mon

Director

Jiang Yiyan

Carol

Vincent Wan Yeung-Ming

Inspector Wang

Jacqueline Chong Si-Man

Harley's girlfriend

Patrick Tam Yiu-Man

Mr. Lau

Stephen Au Kam-Tong

Inspector

Ben Lam Kwok-Bun

Ash

Kevin Chu Kam-Yin

Yin

David Lam Tak-Luk

Drug center executive

Andy Wong Chi-Man

Actor

Johnny Tang Shui-Wa

Actor