Detective Investigation Files III
| Company type | Television series |
|---|---|
| Industry | Television |
| Founded | 1997 |
| Products | Television drama |
| Parent | TVB |
Detective Investigation Files III is a 1997 television series produced by TVB and represents the third entry in the Detective Investigation Files Series, succeeding Detective Investigation Files II. The show consists of 40 episodes. Returning actors include Michael Tao, Joey Leung, and Kenix Kwok. New cast members who replaced Louisa So, Amy Kwok, Joseph Lee, and Sammi Cheng are Margaret Chung, Law Koon Lan, Liu Kai-chi, Monica Chan, and Winnie Yeung. This season presents 10 separate cases.
Principal cast
| Actor | Character | Role Details |
|---|---|---|
| Michael Tao | Cheung Tai Yung (張大勇) |
Detective Inspector Husband of Jessie Best friend to Lee Chung Yi Former boyfriend of Pak Yan Tung |
| Kenix Kwok | Ko Chit (高婕) |
Journalist Spouse of Cheung Tai Yung Niece of Deborah |
| Joey Leung | Lee Chung Yi (李忠義) |
Detective Sergeant Best friend and subordinate to Cheung Tai Yung Ex-boyfriend of Sasa Romantic partner of Lee Sze Lung |
| Margaret Chung | Lee Sze Lung (李思龍) |
Detective Constable Subordinate to Cheung Tai Yung Girlfriend of Lee Chung Yi Close friend of Harvey |
| Liu Kai-chi | Chak Wing Tin (翟永田) |
Seasoned Sergeant Subordinate under Cheung Tai Yung Romantic partner and later husband of Deborah |
| Monica Chan | Pak Yan Tung (柏恩桐) |
Former insurance manager turned restaurant manager Classmate and ex-partner of Cheung Tai Yung |
| Law Koon Lan | Chu Sau Kwan (朱秀筠) |
Jessie's aunt Ex-lover and later wife of Chak Wing Tin Former girlfriend of Johnson |
| Winnie Yeung | Szeto Sasa (司徒莎莎) |
Former girlfriend of Lee Chung Yi Featured in episode 14; exited Hong Kong by episode 40 |
Case 1: The Other Jessie (Episodes 1–5)
| Actor | Character | Role Details |
|---|---|---|
| Patrick Tam | Ho Chi Wan (何志宏) |
Also known as Stephen or Dr. Ho Medical doctor Boyfriend to Ning Qian Hua Killed Tony and attempted to murder Jessie Received death sentence in episode 5 (Antagonist) |
| Kenix Kwok | Ko Chit (高婕) |
Refer to Principal Cast |
| Ning Qianhua (寧倩華) |
Also called Vivian or Ah Qian Originally from Guangzhou Girlfriend of Ho Chi Wan Exchanged identities with Jessie and escaped to Hong Kong Sentenced to death in episode 5 (Secondary antagonist) | |
| Eric Li | Law To Fung (羅道風) |
Also known as Tony or Dr. Law Medical doctor Friend to Ho Chi Wan Murdered by Ho Chi Wan in Beijing, episode 1 |
| Leung Kin Ping | Wang Haosheng (王浩生) |
Blackmailed Gary Shek and Ning Qianhua Killed by Ning Qianhua in episode 1 (Antagonist) |
| Lan Tianying | Lan Qing (藍青) |
Coerced Gary Shek alongside Wang Haosheng Apprehended in episode 2 (Antagonist) |
| Emotion Cheung | Gary Shek (石少維) |
Victim of blackmail by Wang Haosheng and Lan Qing in Beijing |
| Wu Suqin | Fu Zhaohong (伏照紅) |
Friend of Cheung Tai Yung Mother to Qiao Jin |
| Tu Ling | Jiang Yang (姜楊) |
Wife of Qiao Jin |
| Ronnie Ching | Qiao Jin (喬進) |
Friend to Cheung Tai Yung Son of Fu Zhaohong Officer in Beijing police force |
| Lu Wanfen | Ding Miao (丁苗) |
Officer with Beijing police |
| Shen Xingming | Zhu Jin (朱謹) |
Beijing police officer |
| Zheng Ruixiao | Chai Jun (柴軍) |
Beijing police officer |
| Melissa Ng | Yu Xiaoyu (于小愉) |
Legal counsel for Ko Chit |
| Wong Tai-wai | Zheng Guoping (鄭國平) |
Lawyer from Mainland China |
Case 2: Assault and Retribution (Episodes 6–9)
| Actor | Character | Details |
|---|---|---|
| Karen Tong | Cheng So Sam (鄭素心) |
Spouse of Lui Sai Ho Mother to Lui Chin Mei Deceased |
| Lui Chin Mei (呂展媚) |
Stepdaughter of Lui Sai Ho Victim of sexual assault by Lui Sai Ho Responsible for Lui Sai Ho's death in episode 6 Took her own life in episode 9 (Antagonist) | |
| Lau Kong | Lui Sai Ho (呂世豪) |
Stepfather to Lui Chin Mei Perpetrated sexual assault against Lui Chin Mei Killed by Lui Chin Mei in episode 6 (Antagonist) |
Case 3: The Unexpected Killer (Episodes 10–12)
| Actor | Character | Details |
|---|---|---|
| Lisa Lui | Yu Bik Ling (余碧玲) |
Known as 玲姐 Renowned chef Deborah's adversary Murdered by Sham Yeuk Mui |
| Strawberry Yeung | Shum Yeuk Mui (沈若玫) |
Chef Perpetrated the murder of Yu Bik Ling Brought to justice in episode 12 (Antagonist) |
Case 4: A Turbulent Relationship (Episodes 13–15)
| Actor | Character | Details |
|---|---|---|
| Monica Chan | Pak Yan Tung | Refer to #Main Cast |
| Derek Kok | Hui Wai Lin | Also known as William Musician Former husband of Pak Yan Tung Killed Choi Chi Kim in self-defense during episode 13 Died in an accident in episode 15 (Antagonist) |
| Edward Mok | Choi Chi Kim | Victim of William's self-defense killing in episode 13 (Antagonist) |
Case 5: The Butterfly Effect (Episodes 16–18)
| Actor | Character | Details |
|---|---|---|
| Timmy Ho | Ching Sau Mong | Known as 大B哥哥 Sasa's childhood companion Concealed the murder of Ching Sau On |
| Lee Hung Kit | Ching Sau On | Known as 大Dee Older brother to Ching Sau Mong Murdered Jim Chui Yi Suffered from mental illness Killed by Wu Kin and Chan Tai in episode 19 |
| Irene Wong | Jim Chui Yi | Daughter of Johnson Murdered by Ching Sau On in episode 17 |
Case 6: A Furious Affair (Episodes 19–23)
| Actor | Character | Details |
|---|---|---|
| Henry Lee | Chung Man Hoi | Jessie's employer Murdered Harvey and Stella; attempted to kill Mak Ho Hing Apprehended in episode 23 (Antagonist) |
| May Kwong | Mak Ho Hing | Florist by profession Chung Man Hoi's lover and accomplice Died in episode 23 (Antagonist) |
| Gabriel Harrison | Cheung Yat Fei | Known as Harvey Photographer Half-brother of Cheung Tai Yung Stella's former boyfriend Killed by Chung Man Hoi |
| Kan Pui Kwan | Mok Wing Hei | Also called Stella Mok、鍾太 Wife of Chung Man Hoi Harvey's ex-girlfriend Sexually assaulted by Yip Wei; bore a son, possibly Harvey's child Murdered by Chung Man Hoi |
Case 7: Vanishing Act (Episodes 24–27)
| Actor | Character | Details |
|---|---|---|
| Albert Law | Ting Hon Cheung | Husband of Hui Chau Yi Kidnapper Shot and killed by Johnson in episode 27 (Antagonist) |
| Cecilia Fong | Hui Chau Yi | Wife of Ting Hon Cheung |
Case 8: The Charlatan Murders (Episodes 28–31)
| Performer | Character | Details |
|---|---|---|
| Choi Kok Hing | Wan Ko Tin | Fraudster Grandfather of Pak Yan Tung on the paternal side Fatally stabbed by Tam Chi Long |
| Chin Kar Lok | Cho Heung Tung | Cousin to Pak Yan Tung Instigated Tam Chi Long to commit killings Heir to Wan family fortune (Antagonist) |
| Joe Ma | Tam Chi Long | Medical practitioner Murderer of Wan Ko Tin; apprehended in episode 31 (Antagonist) |
Case 9: The Precious Stone (Episodes 32–37)
| Performer | Character | Details |
|---|---|---|
| Law Lok Lam | Fong Sung Yip | Father of Lee Sze Lung Employer of Sasa Veteran of the Vietnam War Murdered by Chiang Yiu |
| Eileen Yeow | Fong Nim Ching | Youngest daughter of Fong Sung Yip Sibling to Lee Sze Lung Wife of Chiu King Seng |
| Wong Kai Tak | Chiu King Seng | Son-in-law to Fong Sung Yip; spouse of Fong Nim Ching Romantically involved with Ho Siu Lai Killed Chiang Yiu; detained in episode 37 (Antagonist) |
| Angela Tong | Ho Siu Lai | Lover of Chiu King Seng Complicit in homicide (Antagonist) |
| Iwanbeo Leung | Chiang Yiu | Artist and lesbian Fiancé to Fong Sung Yip Responsible for Fong Sung Yip's death; killed by Chiu King Seng (Partial antagonist) |
Case 10: Backstage Manipulator (Episodes 37–40)
| Performer | Character | Details |
|---|---|---|
| Kam Hing Yin | Jim Pak Hung (Johnson) | Known as 詹Sir, Chief Inspector Father of Jim Chui Yi Orchestrated incidents in Cases 5, 7, and 9 Captured in episode 40 (Primary Antagonist) |
| Wilson Tsui | Wu Kin | Associate of Chak Wing Tin Murderer of Ching Sau On Abducted Fong Sung Yip and Lee Sze Lung Collaborated with Chan Tai to extort Johnson Killed by stabbing from Johnson (Antagonist) |
| Yau Man Seng | Chan Tai | Partner to Wu Kin Responsible for killing Ching Sau On Involved in kidnapping Fong Sung Yip and Lee Sze Lung Planned extortion against Johnson Shot dead by Johnson (Antagonist) |
| Celine Ma | Helen | Girlfriend of Wu Kin Shot and killed by Johnson |
| Monica Chan | Pak Yan Tung | Former girlfriend and classmate of Cheung Tai Yung Poisoned by Johnson |
| Simon Sit | Sun Keng Do | Village vagrant who witnessed Johnson's offenses Pushed to his death by Johnson |
| Chiu Shek Man | Chou Sir | 周Sir, Superintendent and Johnson's superior officer Accidentally poisoned by Johnson |
| Liu Kai-chi | Chak Wing Tin (翟永田) |
田哥, subordinate to Cheung Dai Yung Romantic partner and eventual spouse of Deborah Severely injured by Johnson in episode 38 |