Theethuch Khummuang
BIOGRAPHY
Theethuch Khummuang (Thai: ธีธัช คุ้มเมือง; born 3 June 2005), known by the nickname Ongsa (องศา), is a Thai actor and singer from Lopburi province. He is managed by A Entertainment and works mainly with the One31 network.
Ongsa first appeared on television in 2020 as a contestant on The Voice Kids Thailand, at the age of fourteen. He moved into acting over the following years and drew wider attention as Siwat in The Cursed Love (2025).
In 2026 he took the role of Prince Thinnakon, a young man of royal lineage, in One31’s historical BL series The Edge of Horizon (อรุณรุ่ง). The series paired him with Jakkrasin Atsavatanachai for the first time, a pairing One31 introduced under the name In-Ongsa.
He enrolled in the Faculty of Communication Arts at Chulalongkorn University in 2024.
BLGLFlix editorial view
He was fourteen and singing on television. Eleven years later he is a prince in a period drama.
Theethuch Khummuang competed on The Voice Kids Thailand in 2020, moved gradually into acting, and drew attention as Siwat in The Cursed Love in 2025. In 2026 he plays Prince Thinnakon in The Edge of Horizon for One31, a young man of royal lineage in a story about what a family will not permit.
The pairing with Jakkrasin Atsavatanachai is brand new. One31 introduced it as In-Ongsa with this series, which means the two of them are being tested in public for the first time. Most pairings do not survive their first show, and there is no way yet to know which kind this is.
He is from Lopburi rather than Bangkok, and enrolled at Chulalongkorn’s Faculty of Communication Arts in 2024. Provincial performers are underrepresented across this catalogue, and where a record actually names the province it is worth keeping.
PROFILE DETAILS
- Native Name
- ธีธัช คุ้มเมือง
- Real Name
- Theethuch Khummuang
- Nickname
- Ongsa
- Pronouns
- he/him
- Born
- (Age 21)
- Birthplace
- Lopburi province, Thailand
- Gender
- Male
- Western Zodiac
- Gemini ♊
- Chinese Zodiac
- Rooster 🐓
- Height
- 180 cm
- Nationality
- Debut
- 2020 — The Voice Kids Thailand (2020)
- Agency / Label
- A Entertainment
- Years Active
- 2020-present
- Languages
- Thai
Discussion 0 comments
Join other fans talking about Theethuch Khummuang. Be kind, no spoilers without tags, no spam.
No comments yet.
Share the first reaction below.