Thanaphum Sestasittikul
BIOGRAPHY
Thanaphum Sestasittikul (Thai: ธนภูมิ เศรษฐสิทธิกุล; born 8 March 2002), known as AuAu, is a Thai actor and singer signed to Domundi TV. He plays Third in Mr. Fanboy (2026) across twelve episodes, and Tonhon in ChermChey (2026) in a guest capacity, appearing in four of the ten.
He was born in Pathum Thani and holds a bachelor’s degree from Silpakorn University’s Faculty of Communication Arts. He entered the industry in 2021 through the survival competitions The Star Idol and LAZ iCON, and was a member of the boy group DVI before moving into acting. His acting debut came in November 2024 as Real in Your Sky, a role he carried again the following March in Your Sky of Us.
BLGLFlix editorial view
Seven credits, and the first two are not acting at all: he appears as himself in New School Breakin and as a contestant in DMD Friendship The Reality. That is the shape of the Thai studio pipeline in plain sight. A performer is recruited through a competition, kept visible on the studio’s own reality output while he is being trained, and then written into a series. Four of his seven entries carry a character name; three do not, and two of those three are him playing himself.
The part worth watching is the second half of 2026. Fifteen episodes as Real in Your Sky and three more in Your Sky of Us were supporting work. ChermChey gave him four as a guest. Mr. Fanboy gives him twelve consecutive episodes as Third. That is the first credit on this record where a whole series is built to carry him from start to finish, and it is why we would treat 2026 rather than 2024 as the year his acting career acquired a shape.
One note on titles. His Your Sky (2024) is a Thai series and is not the same work as Your Sky: Hare Nochi Koi, which this site catalogues separately. The names collide; the productions do not. We have not linked the two, and no record of his Your Sky exists here yet.
The agency, education, birthplace, debut year and DVI membership on this page rest on a single structural source, and are presented with that caveat rather than as fully corroborated. Height, weight, blood type and MBTI are not documented anywhere we consider reliable and stay empty. His Instagram and X accounts are linked in the profile panel.
PROFILE DETAILS
- Native Name
- ธนภูมิ เศรษฐสิทธิกุล
- Real Name
- Thanaphum Sestasittikul
- Nickname
- AuAu (อู่อู๋)
- Born
- (Age 24)
- Birthplace
- Pathum Thani, Thailand
- Gender
- Male
- Western Zodiac
- Pisces ♓
- Chinese Zodiac
- Horse 🐎
- Nationality
- Debut
- 2024 — Your Sky (2024) as Real
- Agency / Label
- Domundi TV
- Years Active
- 2024-present
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