 Gordon Lam Ka-TungThe Master | The Master |
 Yeung Lok-ManSiu Tung | Siu Tung |
 Berg Ng Ting-YipThe Veteran | The Veteran |
| NNg Wing-SzeProstitute Jo | Prostitute Jo |
 Peter Chan Charm-ManThe Murderer | The Murderer |
 Bonnie Wong Man-WaiSiu Tung's Mother | Siu Tung's Mother |
 Koo Tin-LungSiu Tung's Father | Siu Tung's Father |
 Birdy WongProstitute May | Prostitute May |
 Pancy Chan Pui-SzePregnant Police Officer | Pregnant Police Officer |
| YYuen Yee-ManSiu Tung's Sister | Siu Tung's Sister |
 Winston Yeh Ying-WenFather of the Master's Ex Girlfriend | Father of the Master's Ex Girlfriend |
| BBrenda Chan Kwai-FanMother of the Master's Ex Girlfriend | Mother of the Master's Ex Girlfriend |
| NNg Wah-ShanFat Police Officer | Fat Police Officer |
 Zhao YiyiThe Master's Ex Girlfriend | The Master's Ex Girlfriend |
| YYip Long-ChingYoung Police Officer | Young Police Officer |
| CCheung Ming-YiuFat Dragon | Fat Dragon |
| JJonas Cheung Chi-HangThin Tiger | Thin Tiger |
| SSuen Tsz-WaiFat Guy | Fat Guy |
| LLi LinhongProstitute | Prostitute |
 Jacqueline ZhuProstitute | Prostitute |
| KKristine TjhinProstitute | Prostitute |
| HHu ChunmeiSinger in Temple Street | Singer in Temple Street |
| LLi YukSinger in Temple Street | Singer in Temple Street |
| JJackie Chan Chak-KiuSon of Patient in the Next Bed | Son of Patient in the Next Bed |
| EEdmond Kok Wai-HoFather of Master | Father of Master |
 Sherring NgMother of Master | Mother of Master |
| HHu Chun-HinYoung Master | Young Master |
| LLau Tin-ChingTeenage Master | Teenage Master |
| JJayden Cheng Cheuk-NamThe Master's Son | The Master's Son |
| SSamuel GuoYoung Siu Tung | Young Siu Tung |
