Fist Fight

Main Role

• 
  Vincent Wong

  Cheung Fei Fan / "Fever"

  Main Role
• 
  Mat Yeung

  Ha Tin Hang / "Leo"

  Main Role
• 
  Philip Ng

  Ho Tit Nam / "Iron"

  Main Role
• 
  Kaman Kong

  Ma Si Ting / "Sitting"

  Main Role
• 
  Rebecca Zhu

  Yeung Ching Ching / "Madam Young"

  Main Role
• 
  Tiffany Lau

  Chen Ling / "Zero"

  Main Role

Support Role

• 
  Bill Chan

  Wan Sing Hang / Hang Siu /"Hunter" [Former vice president of the HKMA / Media tycoon]

  Support Role
• 
  Toby Chan

  Lui Wai Bing / Oli Jie / "Olivia" [Deputy director of Weixin Bodyguard / Assistant to Xia Xing]

  Support Role
• 
  Chun Wong

  Chong Man Kei / Chong Wung [Rich man]

  Support Role
• 
  Janice Shum

  Cheung Choi Yiu / Yo Jie / "Yolanda"

  Support Role
• 
  Lily Leung

  Cho Yim Fan / "Diana"

  Support Role
• 
  Savio Tsang

  Chan Loi / Loi Suk

  Support Role
• 
  Timothy Cheng

  Chin Kwok Fung / "Raymond"

  Support Role
• 
  Quinn Ho

  Tam Dung Sing / Stone Gor / "Stone"

  Support Role
• 
  Otto Chan

  Li Zi Qin

  Support Role
• 
  Jack Hui

  Tsui Tak Bou / "Double"

  Support Role
• 
  Geoffrey Wong

  "NG"

  Support Role
• 
  Sam Tsang

  Wong Tak Chung

  Support Role
• 
  Yao Bing

  Jia Han Sheng

  Support Role
• 
  Ken Law

  Mr. T

  Support Role
• 
  Osanna Chiu

  Lau Sin Yi

  Support Role
• 
  Brian Burrell

  Chekhov

  Support Role
• 
  Phoebe Chow

  Siu Chui Lam

  Support Role
• 
  Eddie Pang

  Boss Chen

  Support Role
• 
  Janice Ting

  Sum Mei Nga / "Mia"

  Support Role
• 
  Leo Tsang Support Role
• 
  Yu Chi Ming Support Role
• 
  Cheung Sze Yan Support Role
• 
  Ngai Wai Man Support Role
• 
  Chan Wing Chun Support Role
• 
  Ng Shui Ting Support Role
• 
  Lucas Yiu Support Role
• 
  Akai Lee Support Role
• 
  Danny Lo Support Role
• 
  Cheng Shu Fung Support Role
• 
  Martin Tong Support Role
• 
  Jones Lee Support Role
• 
  So Lai Ming Support Role
• 
  Chiu Lok Yin Support Role
• 
  Yeung Shui Lun Support Role
• 
  Man Yeung Support Role
• 
  Willie Lau Support Role
• 
  Kris Lam Support Role
• 
  Amigo Choi Support Role
• 
  Billy Cheung Support Role
• 
  Milkson Fong Support Role
• 
  Burmie Wong Support Role
• 
  Athena Ng Support Role
• 
  Miguel Choi Support Role
• 
  Kitterick Yiu Support Role
• 
  Parkman Wong Support Role
• 
  Chloe Nguyen Support Role
• 
  Jim Tang Support Role
• 
  GoGo Cheung Support Role
• 
  Terence Tung Support Role
• 
  Tse Ho Yat Support Role
• 
  Vincent Lam Support Role
• 
  Calvin Chan Support Role

Guest Role

• 
  Erica Chan

  (Ep. 1, 4, 6, 12)

  Guest Role
• 
  Eric Chung

  Bou Yin (Ep. 2)

  Guest Role
• 
  Derek Wong

  Patrick (Ep. 2)

  Guest Role
• 
  Kiko Leung

  (Ep. 2)

  Guest Role
• 
  Choi Kwok Hing

  Fei Lou Wai (Ep. 2, 12, 22-23)

  Guest Role
• 
  Virginia Lau

  Rosa (Ep. 3-4)

  Guest Role
• 
  Wu Fei

  (Ep. 4)

  Guest Role
• 
  Irina Tang

  Connie (Ep. 4-5)

  Guest Role
• 
  Michael Wai

  [Host] (Ep. 4, 7, 18)

  Guest Role
• 
  Leo Kwan

  (Ep. 5)

  Guest Role
• 
  Leonard Cheng

  (Ep. 7)

  Guest Role
• 
  Terence Siu

  (Ep. 8, 28)

  Guest Role
• 
  Ball Mang

  (Ep. 9)

  Guest Role
• 
  Sandy Leung

  (Ep. 12, 15, 23-24, 26, 30)

  Guest Role
• 
  Sky Chiu

  (Ep. 20)

  Guest Role
• 
  Carisa Yan

  Man (Ep. 20, 27)

  Guest Role
• 
  Antonio Ng

  (Ep. 29)

  Guest Role
• 
  Kelly Ng

  (Ep. 29)

  Guest Role
• 
  Bianca Chan

  Chan Ling [Young]

  Guest Role
• 
  Marcus Lo

  Cheung Fei Fan

  Guest Role
• 
  Kevin Tong

  Holyman

  Guest Role
• 
  Au Hin Wai

  [Retired police chief]

  Guest Role
• 
  Louis Szeto Guest Role
• 
  Helen Seng Guest Role
• 
  Jacky Lee Guest Role
• 
  Siu Lai Man Guest Role
• 
  Tony Chui Guest Role
• 
  Janice Pang Guest Role
• 
  Thomas Ng Guest Role
• 
  Felix Ng Guest Role
• 
  Rachel Ching Guest Role
• 
  Simon Tang Guest Role
• 
  Oman Lam Guest Role

Unknown

• 
  Sophie Yip Unknown
• 
  Cherry Cheung Unknown
• 
  Terrence Huang Unknown
• 
  Joey Miu Unknown
• 
  Edsel Chiu Unknown
• 
  Helen Ng Unknown
• 
  Jenny Wong Unknown
• 
  Lena Li Unknown
• 
  Keith Mok Unknown
• 
  Deborah Poon Unknown