Bull's father got his eye blinded for protecting his best friend, Hing. Since then, he hid away from friends and lived a quiet life with Bull. Years later, the two brothers somehow meet again. Hing run a boxing club and he promised Bull’s father to train Bull well. Under Hing’s teaching, Bull becomes a very skillful boxer.
| Actor | Role |
|---|---|
 Danny ChanBull | Bull |
 Ashina KwokCheuk Wai | Cheuk Wai |
 Liu RuilinKuen | Kuen |
 Ngo Ka-NinStag | Stag |
 Dominic Lam Ka-WahMing | Ming |
 Tony HoDrunk Guy | Drunk Guy |
 Wong Man-BiuHing | Hing |
 Erica ChuiCaca | Caca |
 Alan Chui Chung-SanYiu Wai | Yiu Wai |
 Bowie ChanMo | Mo |
 Awayne LiuNot listed | Not listed |
 Power Chan Kwok-PongNot listed | Not listed |
 Leung Wing-KitKuen's Underling | Kuen's Underling |
| LLi Po-ChaiBar Customer | Bar Customer |
| LLin XiangBar Customer | Bar Customer |
| CChristian Chung Wai-KitMing (Young) | Ming (Young) |
| FFong Kai-YinGangster | Gangster |
| GGeorge Cheung Chi-WaiShipyard Worker | Shipyard Worker |
| WWong Ka-LunBar Customer | Bar Customer |
| MMa Kin-MingBoxing Brother | Boxing Brother |
| CChloe Lee Yee-WingUnderground Fight Audience | Underground Fight Audience |
| CChung YuiParty Guest | Party Guest |
| TTse Man-HeiParty Guest / Bar Waitress | Party Guest / Bar Waitress |
| CChung Pui-HangNurse | Nurse |
| CChan Gam-FungParty Guest | Party Guest |