List of Forensic Heroes IV characters


Forensic Heroes IV is a 2020 police procedural television drama and the fourth installment of the Forensic Heroes series. Produced by Television Broadcasts Limited, Mui Siu-ching serves as the drama's executive producer. The drama closely follows a team of professionals of the Forensic Science and Forensic Pathology departments who work closely with the Kowloon West Regional Crime Unit to crack cases.

Forensic Science Division

Ko On

Dr. Ko On is a Senior Chemist and the laboratory supervisor from the Forensic Science Division of the Hong Kong General Laboratory. When he was twelve, Ko On witnessed his younger sister, Ko Sin, being abducted, and his mother died in a car crash while running after to save her.
Ko On was determined to look for his lost sister and has a close relationship with his youngest sister, Ko Ching. He had known Dr. Man, who is his best friend and neighbour, for years. He is also King Sir’s good friend. Ko On, Dr. Man and King Sir cooperate to crack cases with their professional teams.
In episode 14, he learnt about how Ko Sin was abducted twenty three years ago from Chris, who was forced to take part in the abduction, and decided to forgive her, considering her to be a victim as well.
Ko On originally had a steady relationship with his girlfriend, Monique, though they break up in episode 20 as Monique chose to accompany her first love to the end of his life.
In episode 25, Ko On learnt about Ko Sin's whereabouts from Chris and reunited with her in episode 26. He became Chris’ boyfriend in the final episode.

Shui Wai-ming

Shui Wai-ming, better known as Queen, is a Scientific Evidence Officer from the Forensic Science Division of the Hong Kong General Laboratory. Her father was an Inspector of Police, who perished in the line of duty when she was young. She is Dr. Man, Ko Ching and Monique’s good friend.
Queen became close with King Sir due to their consistent cooperation at work. In episode 16, she found out that her boyfriend, Louis, and her best friend, Elaine, had a one night stand so she broke up with him. In episode 21, Louis was killed and Queen was accused as the murder suspect.
Thanks to King Sir's support and encouragement, she was able to bestir herself, and they became close friends and each other’s ‘tree hole’. However, even though she knew King Sir has feelings for her, she did not accept his confession for fear of losing him, like how she once lost her father. They became an actual couple in the final episode.

Charm Ting

Charm Ting is a Scientific Evidence Officer from the Forensic Science Division of the Hong Kong General Laboratory. He sees Ko On as his idol and becomes close friend with his youngest sister, Ko Ching. Charm Ting has a crush on her, though he doesn’t have the courage to confess to her. They became a couple in the final episode.

Forensic Pathology Division

Man Ka-hei

Dr. Man Ka-hei, better known as Dr. Man, is a Senior Forensic Pathologist from the Forensic Pathology Division of the Hong Kong General Laboratory. Dr. Man had a close relationship with her elder sister. Unfortunately, her sister passed away due to an air crash. Dr. Man followed her sister's dream to be a forensic pathologist and gradually developed passion for her career.
Dr. Man had known Ko On, who is her best friend and neighbour, for years. She is also King Sir’s good friend. The three cooperate to crack cases with their professional teams. She is Queen, Ko Ching and Monique’s good friend as well.
In episode 9, Dr. Man met her deceased sister's boyfriend, Stan, again and they become close friends. Later, Stan confessed to her. However, she was unable to figure out if he really had feelings for her or he only saw her as her sister's replacement. Therefore, she didn’t accept his confession immediately. They became a couple in episode 27.

Kowloon West Regional Crime Unit (RCU)

Kwok Fai-wong

Senior Inspector Kwok Fai-wong , better known as King Sir, is the head of the Kowloon West Regional Crime Unit with high case closure rate.
When King Sir was young, he watched waves with his brother-in-law at the seaside during a typhoon and accidentally fell into the sea. Although he managed to survive, his brother-in-law lost his life for trying to save him. Therefore, his elder sister had a distant relationship with him and he had been feeling guilty for his sister and niece. He rents out his flat to earn school fees for his niece to study abroad. The siblings eventually reconcile in episode 27.
King Sir is Ko On and Dr. Man’s good friend, and cooperates with them to crack cases with their professional teams. He became close with Queen due to their consistent cooperation at work. King Sir comforts and provides support when Queen was at her low ebb. The two became close friends and each other’s ‘tree hole’. King Sir gradually develops feelings for Queen and confessed to her in episode 29. However, she did not accept his confession immediately for fear of losing him, like how she once lost her father. They became an actual couple in the final episode.

Ko Ching

Sergeant Ko Ching is a RCU sergeant. She has a close relationship with her elder brother, Ko On, and respects her supervisor, King Sir. She is also Dr. Man, Queen, and Monique’s good friend.
Ko Ching's elder sister, Ko Sin, was abducted when she was young. Therefore, she became a policewoman and was determined to look for her lost sister. Despite her young age at the time of her sister's abduction, she held on to the hopes that one day, they could all be together again. In episode 26, she reunited with her sister. She became Charm Ting’s girlfriend in the final episode.

Notable characters

Chris Tsui

Chris Tsui Yi is an online news reporter, who occasionally provides clues for case investigations.
Chris’ parents died from a car crash when she was a child. She then lived with her uncle and aunt from her mother's side, who forced her to take part in child abduction. Chris had been feeling guilty for what she was forced to do. Therefore, she became a righteous reporter and hopes to look for clues of the abducted children.
Ko On’s younger sister, Ko Sin, was one of the abducted children. Chris managed to find Ko On, and finally had the courage to tell him about what happened on the day Ko Sin was abducted in episode 14. It turned out she had used a lollipop to lure Ko Sin. She apologised to Ko On and his family, returned the barrette Ko Sin gave her, and received his forgiveness.
In episode 25, her friend Paul managed to trace Ko Sin's whereabouts to an orphanage in San Francisco. Chris told Ko On about the news and Ko Sin contacted him to meet up. She had a crush on Ko On and became his girlfriend in the final episode.

Stan Sze

Stan Sze Kin-yin is a voiceprint expert who occasionally assists in case investigations with his expertise. In episode 9, Stan returned to Hong Kong and met Dr. Man, his deceased girlfriend's younger sister, who reminds him of his deceased girlfriend, and enjoys spending time with her.
Later, he confessed to Dr. Man. However, she was unable to figure out if he really had feelings for her or he only saw her as her sister's replacement. Therefore, she didn’t accept his confession immediately. They became a couple in episode 27.

Supporting Characters

Case 1 (Episodes 1–4)

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