 Sammo Hung Kam-BoMaster Yu Jim-Yuen | Master Yu Jim-Yuen |
 Lam Ching-YingUncle Hua | Uncle Hua |
 Cheng Pei-PeiMaster Cheng | Master Cheng |
| LLee Din-HingCheng Lung's Mother | Cheng Lung's Mother |
| YYeung Yam-YinChild Sammo | Child Sammo |
| CChung Gam-YamTeenage Sammo | Teenage Sammo |
| SSiu Ming-FuiChild Ah-Lung (Big Nose/Jackie Chan) | Child Ah-Lung (Big Nose/Jackie Chan) |
| CCheung Man-LungTeenage Ah-Lung (Big Nose/Jackie Chan) | Teenage Ah-Lung (Big Nose/Jackie Chan) |
| GGoo FaiChild Yuen Biao | Child Yuen Biao |
 Wong Kim-WaiTeenage Yuen Biao | Teenage Yuen Biao |
 Winnie Lau Siu-WaiHsiao-hsien | Hsiao-hsien |
| JJue Yam-FaiChild Ming | Child Ming |
| RRicky Ho Pui-TungTeenage Ming | Teenage Ming |
| CChow Chan-NinNot listed | Not listed |
| WWong Kwong-WahNot listed | Not listed |
 John Shum Kin-FunStagehand | Stagehand |
 Wu MaFilm Director | Film Director |
| SSiu Yiu-KeiNot listed | Not listed |
| LLee Lung-FeiNot listed | Not listed |
| CChan Pui-YinNot listed | Not listed |
| YYu Hiu-FanNot listed | Not listed |
| CChu Wai-MingNot listed | Not listed |
| YYu Hiu-TungNot listed | Not listed |
| FFung Chan-BanNot listed | Not listed |
| LLam Chung-YeungNot listed | Not listed |
| WWilliam Cheng Wai-MingNot listed | Not listed |
| CChan Chi-ChingNot listed | Not listed |
| PPatrick Yeung Chi-KongTeenage No. 8 | Teenage No. 8 |
 Chow Gam-KongWire Team Member (uncredited) | Wire Team Member (uncredited) |
 Chun Kwai-BoWire Team Member (uncredited) | Wire Team Member (uncredited) |
