Detective Investigation Files

Director

• 
  Poon Ka Tak

Main Role

• 
  Michael Tao

  Cheung Dai Yong

  Main Role
• 
  Kenix Kwok

  Ko Jit (Jesse)

  Main Role
• 
  Joey Leung

  Lee Chung Yee

  Main Role

Support Role

• 
  Yvonne Lam

  Liu Siu Fung

  Support Role
• 
  Lau Dan

  Cheung Bak Chuen

  Support Role
• 
  Louisa So

  Yung Gam Chi (Gigi)

  Support Role
• 
  Felix Lok

  Gaan Chi Chiu

  Support Role
• 
  Elton Loo Support Role
• 
  Kenneth Chan

  Kong Yu Hien

  Support Role
• 
  Danny Summer Support Role
• 
  Wong Wai Leung Support Role
• 
  Carrie Ho

  Mao Tak Fan

  Support Role
• 
  Tsui Ga Bo Support Role
• 
  Wong Man Piu Support Role
• 
  Ip Chun Sing Support Role
• 
  Alice Fung Support Role
• 
  Cheung Hak Support Role
• 
  Maggie Chan Support Role
• 
  Choi Kwok Hing

  Mr. Lan

  Support Role
• 
  Tang Yu Chiu Support Role
• 
  Zhang Yan

  Laam Yan Mei

  Support Role
• 
  Suen Kwai Hing Support Role
• 
  English Tang Support Role
• 
  So Hang Suen Support Role
• 
  Mak Tsui Han

  Wong Ye Yun Ting

  Support Role
• 
  Lau Kong Support Role
• 
  Ben Wong Support Role
• 
  John Chan

  Kan Chi Yuen

  Support Role
• 
  Sit Shun Kei Support Role
• 
  Marco Li

  Chang Feng

  Support Role
• 
  Martin Tong Support Role
• 
  Angie Cheong

  Pak Mei

  Support Role
• 
  Sophie Ngan Support Role
• 
  Derek Kok Support Role
• 
  Yu Chi Ming Support Role
• 
  Sam Leung Support Role
• 
  Cecilia So Support Role
• 
  Tam Chuen Hing Support Role
• 
  Yoe Biu Support Role
• 
  Kwok Tak San Support Role
• 
  Daniel Kwok Support Role
• 
  Danny Lo Support Role
• 
  Shally Tsang Support Role
• 
  Lee Gwai Ying Support Role

Guest Role

• 
  Wallace Chung

  Laam Yan Chi (Ep. 6-7, 11)

  Guest Role
• 
  Gregory Charles Rivers

  John

  Guest Role
• 
  Bobo Hoi Guest Role
• 
  Ben Wong

  Lee Hong Keung {Resurrection}

  Guest Role

Unknown

• 
  Patrick Dunn Unknown