
Moo Klot Atthaseri
BIOGRAPHY
Moo Klot Atthaseri (Thai: หมู กลศ อัทธเสรี; born September 14, 1958) is a Thai actor and singer whose screen career spans more than three decades. He plays Songphon in the 2026 revenge thriller Payback, appearing across all ten episodes.
His filmography begins in 1992 with the comedy Somsri #422 R., in which he played Udom, a role he returned to for Somsri 3 in 1995. The early 1990s brought a run of feature work: Hero Haew (1992), Crazy Me (1993) as a Death Angel, and High School Life (1994) as Wan’s father.
He has also worked in voice, playing King Upracha in the animated feature The Blue Elephant (2006). Television is where most of his volume sits. He played Payut in Rai Rissaya (2007), starred as Klein in the 2008 horror-comedy Baan Phee Phop, and later appeared in Chaat Payak (2016), Wicked Angel (2018) as Pairoj, Awaiting Bride (2018) as Riam’s father, The Messenger (2021) and Nak (2023) as Ta Yong. He has appeared in more than a hundred Thai dramas.
His recent years have kept him in steady work. The Empress of Ayodhaya (2024), Love in the Moonlight (2025) and Payback (2026) fall in three consecutive years, and the last of these places him in a contemporary Boys’ Love production alongside a cast mostly in their twenties. Payback finished its ONE 31 broadcast on August 1, 2026.
His name is romanised in several ways: Klot Atthaseri, Claude Athaseri and Klos Utthaseri. His Thai nickname is Moo (หมู), and he was born in Thailand.
Payback follows Sun, a former debt collector who now works as a delivery rider. He learns that his ex-boyfriend Bank has become an actor under the name Sunny, and he enters the entertainment industry to take revenge. Jay, a senior director at Dream Entertainment, becomes part of his plan. The series ran for ten episodes on One 31 from May 30 to August 1, 2026, with iQIYI carrying it internationally. Min Thanakorn Wichanukhor and Toptap Jarukit Kaewmoonrueang lead the cast, and Woodie Pongchaiphat Sethanand directs. Klot was sixty-seven years old while it aired.
Six television roles between 2007 and 2023 add up to 142 episodes.
The count comes from Rai Rissaya at eighteen episodes, Chaat Payak at twenty-eight, Wicked Angel at nineteen, Awaiting Bride at twenty-eight, The Messenger at twenty-four and Nak at twenty-five.
His most prominent leading role, Klein in Baan Phee Phop, sits outside those six, so the 142 episodes come from other parts. Payback then adds ten more episodes as Songphon in 2026.
His credits show a move from comedy and horror toward parts with family or seniority attached. The Somsri films in 1992 and 1995 are comedies, Klein in Baan Phee Phop in 2008 is a horror-comedy lead, and the later television names are Wan’s father, Riam’s father, Ta Yong and Pairoj. Between the first dated credit in 1992 and Payback in 2026 lie thirty-four years, and the work spans film comedy, the voice of King Upracha in an animated feature and long television runs. Songphon, across all ten episodes of a revenge thriller, carries that experience into a contemporary production in which most of the cast are in their twenties.
In my view Klot’s career is best measured in decades rather than roles. He appeared in a comedy in 1992, voiced a king in an animated film in 2006, led a horror comedy in 2008 and is part of a revenge thriller in 2026. What stayed with me is how often he is cast as someone with weight in the room: a father, an elder, a figure others defer to. For a first impression I would watch Baan Phee Phop and then Nak, then see how Songphon sits against a cast decades younger.
PROFILE DETAILS
- Native Name
- หมู กลศ อัทธเสรี
- Real Name
- Klot Atthaseri
- Nickname
- Moo (หมู), Mu, Claude
- Pronouns
- he/him
- Born
- (Age 68)
- Birthplace
- Thailand
- Gender
- Male
- Western Zodiac
- Virgo ♍
- Chinese Zodiac
- Dog 🐕
- Profession
- Nationality
- Debut
- 1992 · Somsri #422 R. (1992) as Udom – earliest dated credit
- Years Active
- 1992-present
- Languages
- Thai (native)
- Skills
- Acting, Singing, Voice Acting, Character Work, Comedy, Horror Performance



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