衝激21

Leslie Cheung

Ben Leung Man Bun

Helena Law Lan

Alan's mother

Eddie Chen

Jack Fung Chi Lik

Paul Chung Biu-Law

Alan

Lau Wan-Na

Kora

Dion Lam Dik-On

Jack Hau Ka Chung

Ho Wai-Han

Gigi

Chui Gai-Heung

Jenny

Chin Yuet-Sang

Snake

Kwan Hoi-San

Alan's father

Fung Fung

Jack's father

So Hang-Suen

Mann's aunt

Lau Yat-Fan

Dwarf

Bruce Mang

Jenny's boyfriend

Mai Kei

Street racer

Johnny Cheung Wa

Boney

Chan Chi-Fai

Old K's friend

Joe Chu Kai-Sang

Old K's friend

Ho Pak-Kwong

Driving instructor

Glen Thomson

Friend of Ben's mother

Chik Ngai-Hung

Hostage policeman in supermarket

Leung Shan

Ben's mother