Directed by:
- Ringo Lam
Written by:
- Yin Nam
Cast:
- Yun-Fat Chow ... 41671 / Chung Tin Ching
- Tony Leung Ka Fai ... 51910 / Lo Ka Yiu
- Ka-Kui Ho ... Micky
- Roy Cheung ... Officer 'Scarface' Hung
- Victor Hon ... Chiu Chow Man
- Chi Hung Ng ... Blind Snake
- Kwong Leung Wong ... Bill
- Man-Gwan Wong ... Mimi
- Joe Chu ... Billy
- Fui-On Shing ... Madly
- Ming Leung ... Yiu's Father
- Shui-Jan Fung ... Ching's Mother
- Yuen-Tat Chan ... Kau Suk
- Shu-Kei Law ... Prison Warden
- Yin Nam ... Prisoner's Head
- Shui-Chiu Gan ... Police Inspector
- Kwong-Tim Lee ... Prisoner
- Wai Man Tam ... Prisoner
- Foo-wai Lam ... Extra
- Shui-Wah Fok ... Extra
- Kwok-kin Ng ... Extra
- Ying-Ying Tang ... Extra
- Shih Wu ... Extra
.