Cast & crew
Once a Gangster (2010)
Directed by Felix Chong Man-Keung Written by Felix Chong Man-Keung, Lau Ho-Leung
Cast
| Ekin Cheng Yee-Kin | Sparrow |
| Jordan Chan Siu-Chun | Pork |
| Michelle Ye Xuan | Nancy Taylor |
| Alex Fong Chung-Sun | Kerosene |
| Candice Yu On-On | Pearl Slaghoople |
| Wilfred Lau Ho-Lung | Qi Yan |
| Conroy Chan Chi-Chung | 'Scissors' |
| Nan Yik-Pong | Greasy Sae |
| Samuel Kwok Fung | Uncle Owen |
| Derek Tsang Kwok-Cheung | Pork |
| C Kwan | Wing |
| Leo Chim | Engine |
| Pakho Chau | |
| Stephen Au Kam-Tong | Suzette Wong |
| Ben Yuen Foo-Wah | Uncle Owen |
| Geoffrey Wong Chi-Hung | Lau |
| Julius Brian Siswojo | Tung |
| Phat Chan | |
| Wong Yau-Nam | |
| Kwok-Sang Lee | 宋青书 |
| Jack Wong | |
| Leung Wing-Kit | DI Chapman |
Crew
| Alan Mak Siu-Fai | Producer |
| Felix Chong Man-Keung | Director |
| Felix Chong Man-Keung | Writer |
| Benny Kung | Second Assistant Director |
| Jonathan Li Tsz-Chun | First Assistant Director |
| Davy Tsou Lin-Yau | Director of Photography |
| Felix Chong Man-Keung | Original Story |
| Lau Ho-Leung | Original Story |
| Chapman To Man-Chat | Original Story |
| Ronald Wong | Producer |
| Ken Chan Ka-Yip | Original Music Composer |
| Lau Ho-Leung | Writer |