Meet the Cast of Netflix’s Thai Mystery Series ‘Delusion’ (With Photos)

Netflix is expanding its slate of original Southeast Asian programming with the arrival of the Thai crime thriller ‘Delusion,’ a series built around a family unraveling under suspicion and superstition. The story follows the family of high school teacher Wan, whose father becomes the prime suspect in a murder case, and who must race against time to uncover the truth. The official Netflix description frames it as a woman’s life spiraling when her father’s dementia makes him a prime suspect in a murder, while villagers come to believe he is possessed by a malevolent spirit.

‘Delusion’ is set to premiere on Netflix on September 24, 2026, and the project comes from director Chayan Laoyodtrakool, who co-wrote the screenplay alongside Pete Kasidej Sundararjun and Yui Kanokphan Ornrattanasakul. Ahead of the premiere, here is a closer look at the performers carrying the show’s central mystery, along with the characters they play.

Natapohn Tameeruks

Natapohn Tameeruks leads the series as Wan, a dedicated small-town school teacher facing an unimaginable family crisis. Her character is forced to conduct her own investigation when her father is accused of committing a heinous local murder, all while balancing her emotional distress over his cognitive decline against the growing hostility of her neighbors.

Tameeruks is a prominent Thai actress widely recognized for her leading roles across several award-winning television productions. According to Netflix, she has described the character of Wan as deeply resonating with her own life, particularly the struggles of a generation trying to build their own futures while carrying the anxiety of caring for aging parents.

That personal connection appears to have shaped her approach to the role. In comments shared through Netflix’s own press materials, Tameeruks explained that the series is fundamentally about deception, and that it deliberately makes the audience question what kind of series they are actually watching, whether it is a mystery, an investigative thriller, or a family drama, before something hidden is revealed that justifies why the story had to be told this way.

Jespipat Tilapornputt

Jespipat Tilapornputt stars as Pete, whose character becomes involved in the tense events surrounding the homicide inquiry and the community’s subsequent fallout. Pete is introduced as a detective transferred from Bangkok, a man who believes only in what evidence can prove and what his own eyes can see, rather than superstition or rumor.

Tilapornputt has built an extensive career in Thai television, frequently appearing in high-profile romantic and dramatic series. In this production, his character interacts closely with Wan as the investigation uncovers long-buried secrets within the family and the town.

His role places him at the center of the show’s central tension between rational police work and the folklore swirling around the case. As the series unfolds, Pete’s skepticism becomes a counterweight to the community’s growing belief that something supernatural is at play.

Surasak Chaiaat

Veteran performer Surasak Chaiaat portrays Narong, an aging father struggling with progressive dementia. Narong’s deteriorating mental state and erratic behavior quickly place him under suspicion as the prime suspect in the murder case, and his fractured memories create deep ambiguity as his daughter struggles to verify his whereabouts and actions.

The wider premise centers on a child’s disappearance that awakens an old local fear surrounding the legend known as Phii Pong, with Narong at the center of that suspicion. His illness becomes tangled with the resurfacing supernatural legend, complicating any straightforward reading of what actually happened.

Chaiaat brings extensive experience from his decades-long career in Thai film and television to this complex dramatic role. His casting anchors the show’s emotional core, since much of the mystery hinges on whether Narong’s condition is a medical reality, a cover for something darker, or both at once.

Vachiravit Paisarnkulwong

Vachiravit Paisarnkulwong appears in the drama as a key character named Wat, who becomes entangled in the escalating tension as dark rumors spread across the small town following the crime. Paisarnkulwong is a well-established Thai actor and model recognized for his versatile performances in television dramas and feature films.

Speaking about the pressure of working alongside a seasoned ensemble, the actor told whats-on-netflix that working alongside so many experienced cast members meant he had to do more homework than ever before, digging deep into Wat’s background to justify his actions in every scene, and going through numerous solo and group workshops to understand the character on a deeper level before filming.

His role adds another layer of narrative intrigue to the central investigation as the community fractures under suspicion. Alongside the four leads, the series also features Tom Sirani Yankittikan, Norraphat Nakadumrongchai, Boombim Samtone, and Suttawat Settakorn in supporting roles that round out the ensemble.

‘Delusion’ arrives at a moment when Thai mystery dramas have been steadily gaining traction with international streaming audiences, and this cast appears built to carry a story that blurs the line between medical tragedy and folklore. With the premiere date now set, viewers will soon find out whether the answer lies in dementia, superstition, or a secret the family has buried for years, and it is worth asking which of these four central performances you expect to define ‘Delusion’ once the mystery finally unravels.