- Jin Zhang
- Kowloon
- Anderson Silva
- Alexander Sinclair
- Kevin Cheng
- Tso Chi-Tak
- Annie Liu
- Kay Wong
- Stephy Tang
- Fong Ning
- JuJu Chan Szeto
- Lady Sinclair
- Endy Chow
- Chow Mo
- Suet Lam
- Uncle
- Richard Ng
- Wong Bing-Cheong
- Lawrence Ah-Mon
- Bicycle rider
- Hin-Wai Au
- Fong Ning's father
- Pui Na Cheng
- News reporter
- Chung-Chi Cheung
- Cheung Fung-Hap
- Ho-Kit Cheung
- Chief superintendent of police
- Timothy Cheung
- Sou Chi-Kin
- Hinson Chou
- Ho
- Kwok-hung Chow
- Charity boxing match referee
- Mingyu Chu
- Lu Song-mao
- Faye Fei-Yin Chui
- Ng Ka-Yin
- Wai-Kit Chung
- Uncle's thug
- Ellen Costa
- Chopstick
- Chi-Kui Fong
- Yeung
- Tak-Man Fong
- Doll
- Kei Gambit
- Kowloon
- Hou Fong 'Raymond' Ho
- CSP Lai's deputy
- Kai-Shui Hung
- Shui
- Wai-Fong Kot
- Fong Ning's mother
- Hoi-Tung Kwok
- Chow Mo's relative
- Yuk-Keung Kwok
- Senior superintendent of police
- Dave Ching Lam
- Underground boxing coach / fighter
- Hau-Yung Law
- Cousin
- Ka-Chun Law
- Underground boxing match host
- Aki Lee
- Uncle's thug
- Loletta Lee
- Jane
- Anjo Leung
- Lemon
- Chi-Kwong Leung
- Senior superintendent of police
- Tsun-Hung Liu
- Chan San
- Sheldon Lo
- Police Officer
- Kei Lok
- Uncle's thug
- Vivek Mahbubani
- Charity boxing match host
- Carl Ng
- Panther
- Hugo Ng
- CSP Lai
- Zhan Jie Shi
- Underground boxing coach assistant
- Edmund Tong
- CID
- Nic Tsang
- Chinese pharmacy staff
- Alan Wan
- Keung
- Chi-Man Wong
- Uncle's thug
- Kar-Keung Wong
- Coroner
- Kwok-Wah Wong
- PTU
- Yat-ho Wong
- Mou
- Tat-Chi Yu
- Chow Mo's relative
- Marsha Yuen
- Cheng Wing-Yi
