Gun Metal Grey

Director

• 
  Terry Tong

Screenwriter

• 
  Tam Gim Wai
• 
  Lau Choi Wan
• 
  Leung Yan Tung

Main Role

• 
  Felix Wong

  Shek Tung Sing / Stone Sir

  Main Role
• 
  Michael Miu

  Mai On Ting / Mad Sir

  Main Role

Support Role

• 
  Savio Tsang

  Luk Chi Chung

  Support Role
• 
  Oscar Leung

  Fai Shim / Lee Shim Leung

  Support Role
• 
  Vincent Wong

  Carson Ko

  Support Role
• 
  Angel Chiang

  Mai On Lok

  Support Role
• 
  Nancy Wu

  Sze Hui

  Support Role
• 
  Mimi Chu

  Ma Lei Lei / Lily Je

  Support Role
• 
  Jessica Hsuan

  Hui Mun Him / “Kim”

  Support Role
• 
  Camy Ting Support Role
• 
  Amy Ng Support Role
• 
  Stephen Ho Support Role
• 
  Jones Lee Support Role
• 
  Otto Chan

  [Criminal Investigation Dept. Agent]

  Support Role
• 
  Wong Wai Tak Support Role
• 
  Kwan Ching Support Role
• 
  Adam Ip Support Role
• 
  Cheng Ka Sang Support Role
• 
  Ling Lai Man Support Role
• 
  Andy Dai

  (Police Unit)

  Support Role
• 
  Tony Yee Support Role
• 
  Martin Tong Support Role
• 
  Casper Chan Support Role
• 
  Helen Ng Support Role
• 
  Andy Sui Support Role
• 
  Forest Chan Support Role
• 
  Russell Cheung Support Role
• 
  Doris Chow

  Doris

  Support Role
• 
  Janice Ting

  Shek Long / "Sharon" [Stone's daughter]

  Support Role
• 
  Cilla Kung Support Role
• 
  Eddie Law Support Role
• 
  Deon Cheung

  Mai Ji Wai / "Robert"

  Support Role
• 
  Vincent Cheung Support Role
• 
  Ricky Lee Support Role
• 
  Sammy Sum Support Role
• 
  Joseph Lee

  Ho Kai Chit

  Support Role
• 
  Lee Hoi Sang Support Role
• 
  Yeung Shui Lun Support Role
• 
  Jason Lam Support Role
• 
  GoGo Cheung

  Kitty

  Support Role
• 
  Alan Luk

  "Prisoner"

  Support Role
• 
  Cayley Mak Support Role
• 
  Sam Leung Support Role
• 
  Ronald Law Support Role
• 
  Calinda Chan Support Role
• 
  Fanny Ip Support Role
• 
  Kong Hon Support Role
• 
  Chiu Lok Yin Support Role
• 
  Jimmy Au Support Role
• 
  Cecilia So Support Role
• 
  Gordon Siu Support Role
• 
  Ko Chun Man Support Role
• 
  Lily Leung

  Mrs. Pao

  Support Role
• 
  Kwok Tak San Support Role
• 
  Nathan Ngai Support Role
• 
  Max Choi Support Role
• 
  Peter Pang Support Role
• 
  Lily Liu Support Role
• 
  Chan Min Leung Support Role
• 
  Sunny Dia Support Role
• 
  Jenny Fan

  [Nurse]

  Support Role
• 
  Kitty Lau Support Role
• 
  David Do Support Role
• 
  Kau Cheuk Nang Support Role
• 
  Tony Kwong Support Role
• 
  Calvin Lui Support Role
• 
  Sunny Lau Support Role
• 
  Wong Man Piu Support Role
• 
  Ngai Wai Man Support Role
• 
  Coson Leung Support Role
• 
  Helen Seng Support Role
• 
  Samantha Chuk Support Role
• 
  Yu Chi Ming Support Role
• 
  Akai Lee Support Role
• 
  Eric Chung Support Role
• 
  Jacky Yeung Support Role
• 
  Chan Wing Chun Support Role
• 
  Shally Tsang Support Role
• 
  Chiu Shek Man Support Role
• 
  Snow Suen Support Role
• 
  Dickson Wong Support Role
• 
  Daniel Kwok Support Role
• 
  Leo Tsang Support Role
• 
  Joe Junior Support Role
• 
  Ricky Wong Support Role
• 
  Candice Chiu Support Role
• 
  Oscar Chan Support Role
• 
  Eddie Li Support Role
• 
  Alice Fung Support Role
• 
  Man Yeung Support Role
• 
  Pauline Chow

  Tracy

  Support Role
• 
  Max Cheung Support Role
• 
  Mak Ka Lun Support Role
• 
  Samson Yeung Support Role
• 
  Rebecca Chan

  Kan Chuk Kwan

  Support Role
• 
  Chloe Nguyen

  Chloe

  Support Role

Guest Role

• 
  Coffee Lam

  Yuki

  Guest Role
• 
  Elena Kong

  Chow Chi Lun / Rose

  Guest Role
• 
  Siu Lai Man Guest Role
• 
  Josephine Shum Guest Role
• 
  Li Wai Kin

  Doctor

  Guest Role
• 
  Axity Chong

  Chan Ya Ping [Young adult]

  Guest Role
• 
  Athena Ng

  [Armed police officer] (Ep. 10)

  Guest Role
• 
  Kerry Chan Guest Role
• 
  Queena Chan

  Jackie

  Guest Role
• 
  Janice Shum

  Ho Mei Hung

  Guest Role

Unknown

• 
  Stefan Wong

  Frankie Chiang

  Unknown
• 
  Jenny Wong Unknown
• 
  Deborah Poon Unknown