Lam Yiu-sing (; born ) is a Hong Kong actor best known for his roles as Tse Chi-lung in the sports film Weeds on Fire (2016) and young David in the ViuTV romance series Margaret & David.
Biography Lam was born in 1988 or 1989. He has an elder brother and grew up in a public housing estate in Tuen Mun. He did not perform well academically and left school after finishing Form 5, beginning to work various jobs, including as a mall renovation worker. At the age of 17, Lam was discovered by director Heiward Mak on a sports field, and was cast in the lead role of her drama film High Noon. After this experience, he became interested in acting and began auditioning for roles, starring in student graduation projects and short films while continuing to work in labor jobs, such as an air conditioning maintenance apprentice. In 2014, Lam again collaborated with Heiward Mak, starring in her romance film .
Lam's breakout role came in 2016, when he played Tse Chi-lung, a baseball player on a real-life Hong Kong team that won the first gold medal in baseball, in the sports drama film Weeds on Fire. That same year, he also shared a lead role with Bowie Lam as the younger version of the titular character David in the ViuTV romance series . Lam continued to land lead roles, starring in the HOY TV romance series in 2017. In 2018, he portrayed musician Danny Yip in the biographical film , and had a lead role in the comedy film alongside Neo Yau. The following year, he co-starred as Bunny in the sports film , and appeared in the drama film Suk Suk. He also starred in Toy Stories, a segment of the 2020 anthology film . In 2021, Lam portrayed the younger version of Patrick Tse in the black comedy film Time, for which they shared a win for the Best Movie Character of the Year in the Hong Kong Screenwriters' Guild Awards of that same year.
In 2022, Lam had a main role in the mystery thriller web series , and appeared as the younger version of Tony Leung Chiu-wai in the crime thriller film Where the Wind Blows. In 2024, he landed a main role in the ViuTV legal drama , and starred in a lead role as the younger version of Sam Lee (played by Stephen Tung) in the action film Stuntman.
Personal life Lam began dating actress and model in June 2016, and announced their break up in November 2019. In 2023, he opened an izakaya in Mong Kok with singer .
Filmography Film Year Title Role Notes/ 2008 High Noon Nou Wing (怒榮) 2010 Dream Home Sheung's Brother Love in a Puff Hak Jai (黑仔) 2014 Ho Yip (何葉) 2016 Weeds on Fire Tse Chi-lung (謝志龍) 2018 Danny Yip Kwan Ching-kit (關正傑) Lau Nga-chuen (劉亞全) 2019 Bunny (電兔) Suk Suk Edmond 2020 The Elder Brother Segment: Toy Stories 2021 Time Young Chau (田立秋) 2022 Where the Wind Blows Young Nam Kong (南江) 2023 Tang Mo (鄧武) Special appearance The Goldfinger Tse Kin-ming (謝建明) 2024 Love Lies Detective Wong (黃Sir) Stuntman Young Sam Lee (李森) 2025 My Best Bet Terry
Television Year Title Role Notes/ 2016 Young David (大衛) Main role 2017 Cheung Ka-ching (張家正) Main role2018 Calvin Cameo Guardian Angel Nicky (力奇) Recurring role Tang Chi-nam (鄧子嵐) Main role 2019 Himself Cameo 2021 Chow Yu-yan (周宇仁) Special appearance 2022 Wallace Yip (葉港偉) Main role2023 Lok (郭建樂) Recurring role Skewers stall owner Cameo 2024 Jonny Main role
Awards and nominations Year Award Category Work Result 2021 Hong Kong Screenwriters' Guild Awards 2021 Best Movie Character of the Year Time
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