Acting
- 2026The Unusual ProsecutorYiu Ying-but25 ep.
- 2025Heroes in White20 ep.
- 2025The Queen of Castle3 ep.
- 2023Romeo And His Butterfly Lover25 ep.
- 2023Treasure of Destiny24 ep.
- 2022Go with the Float25 ep.
- 2022You Light Me Up1 ep.
- 2022ICAC Investigators 20221 ep.
- 2022Barrack O'Karma 1968陈喜力2 ep.
- 2021Hello MissfortuneSzema Kwan-leun10 ep.
- 2021邊度都有陰謀13 ep.
- 2021Take Two25 ep.
- 2021Battle of the Seven Sisters26 ep.
- 2021Shadow of Justice32 ep.
- 2020Death By ZeroChan Cha-lei30 ep.
- 2019Handmaidens UnitedKau Ching15 ep.
- 2019Flying Tiger IITsui Wang Yip30 ep.
- 2019Big White DuelYau Kwok-tong / Ivan25 ep.
- 2018Fist Fight30 ep.
- 2018Life on the Line25 ep.
- 2018Birth of a Hero20 ep.
- 2017Heart and Greed刘松基 (C.K.)1 ep.
- 2017The Tofu War20 ep.
- 2017The Unholy Alliance28 ep.
- 2017A General, A Scholar and An EunuchCheung Sing32 ep.
- 2017The No No Girl20 ep.
- 2016ICAC Investigators 20165 ep.
- 2016Inspector Gourmet20 ep.
- 2016My Lover From The Planet Meow32 ep.
- 2016Love as a Predatory Affair21 ep.
- 2015Momentary Lapse Of Reason20 ep.
- 2015Raising The Bar25 ep.
- 2014The Ultimate AddictionCui Yin Fa / Fa Si30 ep.
- 2014ICAC Investigators 20141 ep.
- 2013Brother's Keeper32 ep.
- 2013Return of the Silver Tongue25 ep.
- 2012Ghetto Justice II21 ep.
- 2012No Good Either Way21 ep.
- 2011When Heaven Burns30 ep.
- 2011Dropping By Cloud Nine10 ep.
- 2010Every Move You Make梁永泰20 ep.
- 2010Some Day118 ep.
- 2008Legend of the Demigods玉衡子22 ep.
- 2008A Journey Called Life20 ep.
- 2005Women on the Run26 ep.
- 2005Placebo Cure20 ep.
- 2005The Zone陈校长1 ep.
- 2004The Conqueror's Story雍齿 Yung Chi30 ep.
- 2004To Catch the Uncatchable何子敬（Eric）2 ep.
- 2003In The Realm Of Fancy20 ep.
- 2002Lofty Waters Verdant Bow20 ep.
- 2002Golden Faith45 ep.
- 2002Where the Legend Begins27 ep.
- 2001In the Realm of Success20 ep.
- 2001Gods of Honour纣王40 ep.
- 2001Screen Play25 ep.
- 2000Incurable Traits20 ep.
- 2000Time Off20 ep.
- 2000When Dreams Come True20 ep.
- 1999Man's Best Friend20 ep.
- 1998Burning FlameMarco Lau Hoi Yat43 ep.
- 1998Healing Hands王国彬40 ep.
- 1997Untraceable Evidence郭伟成2 ep.
- 1995Detective Investigation Files刘建生 Lau Kin Sang50 ep.
Guest appearances
- 2025The Queen of Castle3 ep.
- 2022Communion1 ep.
- 2022ICAC Investigators 20221 ep.
- 2022Barrack O'Karma 1968陈喜力, 陳喜力2 ep.
- 2017Heart and Greed刘松基 (C.K.)1 ep.
- 2014ICAC Investigators 20141 ep.
- 2005The Zone陈校长1 ep.
- 2004To Catch the Uncatchable何子敬（Eric）2 ep.
- 1999Untraceable Evidence郭伟成2 ep.
Also known as: Timothy Cheng Tse-Sing · Cheng Chi-Sing · 鄭子誠 · Cheng Zi-Shing · Zheng Zi-Cheng · Cheng Tse-Sing · 郑子诚