Detective Investigation Files Season 3

Director

• 
  Poon Ka Tak
• 
  Lam Chi Wah

Screenwriter

• 
  Lam Yuk Fan

Main Role

• 
  Michael Tao

  Cheung Tai Yung

  Main Role
• 
  Kenix Kwok

  Ko Jit/ Jessie

  Main Role
• 
  Joey Leung

  Lee Chung Yee / "Yee Tsai"

  Main Role
• 
  Margaret Chung

  Lee Si Lung

  Main Role
• 
  Liu Kai Chi

  Jap Wing Tin

  Main Role

Support Role

• 
  Law Koon Lan

  Chu Sau Kwan [Jessie's aunt]

  Support Role
• 
  Kam Hing Yin

  Sargent Yim [CID]

  Support Role
• 
  Winnie Yeung

  Szeto Sa Sa

  Support Role
• 
  Monica Chan

  Pak Yun Tong

  Support Role
• 
  Teresa Ha

  Bak Neung

  Support Role
• 
  Esther Wan

  Law Bing Bing [CID]

  Support Role
• 
  Deon Cheung

  Foo Gam Wing [CID]

  Support Role
• 
  Cheung Hak

  [CID]

  Support Role
• 
  Gabriel Harrison

  Cheung Yat Fei / Harvey [Tai Yung's brother]

  Support Role
• 
  Elton Loo

  Thomas [Sau Kwan's restaurant staff]

  Support Role
• 
  Wilson Tsui

  Wu Kin

  Support Role
• 
  Samuel Yau

  Chan Tai

  Support Role
• 
  Ellesmere Choi

  Poon Chi Tou [Psychologist]

  Support Role
• 
  Law Lok Lam

  Fong Sung Yip [Si Lung's father]

  Support Role
• 
  Eileen Yeow

  Fong Nim Ching [Si Lung's sister]

  Support Role
• 
  Derek Kok

  Hui Wai Lim / William [Yan Tong's husband]

  Support Role
• 
  Lai Suen

  [Sa Sa's grandmother]

  Support Role
• 
  Yoe Biu

  Sam [Jessie's colleague]

  Support Role
• 
  Kan Pui Kwan

  {Case 6} Mok Wing Hei [Man Hoi's wife]

  Support Role
• 
  Choi Kwok Hing

  {Case 8} Wan Go Tin [Yun Tong's grandfather]

  Support Role

Guest Role

• 
  Chiu Shek Man

  Chow Sir [Police lieutenant]

  Guest Role
• 
  Ching Siu Lung

  {Case 1} Kiu Jun / Officer Kiu

  Guest Role
• 
  Patrick Tam

  {Case 1} Ho Chi Wang / Stephen

  Guest Role
• 
  Emotion Cheung

  {Case 1} Shek Siu Wai / Gary [Hang Hang's biological father]

  Guest Role
• 
  Melissa Ng

  {Case 1} Yue Siu Yue [Lawyer]

  Guest Role
• 
  Sam Leung

  {Case 1} Wong Ho Sung

  Guest Role
• 
  Zheng Guo Lin

  {Case 1} Chai Kwan

  Guest Role
• 
  Eric Li

  {Case 1} Tony

  Guest Role
• 
  Tu Ling

  {Case 1} [Kiu Juns's wife]

  Guest Role
• 
  Karen Tong

  {Case 1} Lui Chin Mei / Cheng So Sam

  Guest Role
• 
  Lau Kong

  {Case 2} Lui Sai Ho

  Guest Role
• 
  Sammy Lau

  {Case 2} Lui Chin Kei [Sai Ho's son]

  Guest Role
• 
  Peter Lai

  {Case 2} Kwok Sue San [Lui Chin Mei's biological father]

  Guest Role
• 
  Kitty Lau

  {Case 2} Lei Po Han

  Guest Role
• 
  Strawberry Yeung

  {Case 3} Sam Yeuk Mui

  Guest Role
• 
  Lisa Lui

  {Case 3} Yu Bik Ling

  Guest Role
• 
  Edward Mok

  {Case 3} Choi Chi Chiu [Pak Yan Lam's boyfriend]

  Guest Role
• 
  Martin Tong

  {Case 4} "Ah Tak" [Wai Lim's bandmate]

  Guest Role
• 
  Irene Wong

  {Case 5} Yim Chui Yi [Captain Yim's daughter]

  Guest Role
• 
  Timmy Ho

  {Case 5} Ching Sau Mong

  Guest Role
• 
  Bruce Li

  {Case 5} Ching Sau On

  Guest Role
• 
  Marco Li

  {Case 5} Szeto Leung [Sa Sa's uncle]

  Guest Role
• 
  Wong Wai Tak

  {Case 5} Mr. Jue / "Brother Tai"

  Guest Role
• 
  Lee Shing Cheong

  {Case 6} Jung Man Hoi

  Guest Role
• 
  May Kwong

  {Case 6} Mak Ho Hing

  Guest Role
• 
  Ngai Wai Man

  {Case 6} Yip Wai

  Guest Role
• 
  Koey Leung

  {Case 6} Emily

  Guest Role
• 
  Zhuo Fan

  {Case 6} "Ah Hung"

  Guest Role
• 
  Albert Law

  {Case 7} Ding Hon Cheung

  Guest Role
• 
  Wong Wai

  {Case 7} Yung Man Wai

  Guest Role
• 
  Cecilia Fong

  {Case 7} Leung Chau Yi [Hon Cheung's wife]

  Guest Role
• 
  Timmy Hung

  {Case 7} Yung Ka Kan [Man Wai's son]

  Guest Role
• 
  Ma Ching Yee

  {Case 7} Tung Tin Na [Man Wai's wife]

  Guest Role
• 
  Joe Ma

  {Case 8} Tam Chi Long / Dr. Tam

  Guest Role
• 
  Chin Ka Lok

  {Case 8} Cho Heung Tung

  Guest Role
• 
  Chan Wing Chun

  {Case 8} Leung Chi Hung [Po King's husband]

  Guest Role
• 
  Lau Mei Shan

  {Case 8} Wan Choi Hung [Housekeeper]

  Guest Role
• 
  Angela Tong

  {Case 9} Erica

  Guest Role
• 
  Candy Chiu

  {Case 9} Bei Lei

  Guest Role
• 
  Cecilia So

  {Case 9} "Sister Han [Kng Sing's mother]se 9]

  Guest Role
• 
  Chiu Hung

  {Case 9} [Homeless man]

  Guest Role
• 
  Ng Wai Shan

  {Case 9} "Sister Han" [Young adult]

  Guest Role
• 
  Celine Ma

  {Case 10} Hoi Lun [Wu Kin's lover]

  Guest Role
• 
  Sit Shun Kei

  {Case 10} Sang King Do [Homeless man]

  Guest Role
• 
  Yvonne Lam

  Liu Chiu Fung / Madame Liu [Police Sargent - CID] (Ep. 39-40)

  Guest Role
• 
  Mak Ka Lun

  Sunny [Si Lung's senior]

  Guest Role
• 
  Jenny Wong

  May

  Guest Role
• 
  Lily Liu

  Lei Wen Fong

  Guest Role
• 
  Ip Chun Sing

  Mang Po [CID]

  Guest Role
• 
  Carrie Ho

  Mao Tak Fan [CID]

  Guest Role
• 
  Maggie Chan

  Ko Man [Jessie's sister]

  Guest Role
• 
  Lau Dan

  Cheung Bak Chuen [Tai Yung's father]

  Guest Role
• 
  Daniel Kwok

  [Police Officer]

  Guest Role
• 
  Leo Tsang Guest Role
• 
  Russell Cheung Guest Role
• 
  Yu Mo Lin Guest Role
• 
  Cheng Lei Guest Role
• 
  Yeung Shui Lun Guest Role
• 
  Danny Lo Guest Role
• 
  Bobo Hoi Guest Role
• 
  Ammathy Winnie Lui Guest Role