Putthipong Assaratanakul

Putthipong Assaratanakul, better known to fans as Billkin, is a Thai actor and singer whose work has crossed borders. Born October 8, 1999, in Bangkok, he first turned heads as Tao in the 2019 series My Ambulance, but it was his layered portrayal of Teh in the 2020 hit I Told Sunset About You that made him a regional sensation. He reprised the role in the 2021 sequel I Promised You the Moon, cementing a devoted fanbase across Southeast Asia.

Billkin's 2024 film How to Make Millions Before Grandma Dies earned critical acclaim and expanded his reach beyond BL audiences. He is also a singer with a growing discography, and his influence now extends into fashion and business. As of 2026, he remains one of Thailand's most in-demand young stars, with a master's degree from the UK and a slate of new projects on the horizon. [edit]

Billkin grew up in Bangkok in a Thai-Chinese family, a heritage he has spoken about with pride. He attended St. Gabriel's College, a prestigious all-boys school in the city, where he balanced academics with an early interest in performance. His first taste of the entertainment world came through Nadao Bangkok, the now-defunct production company that nurtured many Thai stars. He started out hosting, learning the ropes of being on camera before transitioning to acting.

His first on-screen role was a small part in the 2018 film Brother of the Year, a comedy that gave him a foothold in the industry. The following year, he landed a supporting role as Tao in the medical romance series My Ambulance, which became a hit and put him on the radar of casting directors. It was a steady climb, marked by small steps and a willingness to learn, rather than a sudden leap to fame. [edit]

Billkin's breakthrough came in 2020 when he starred as Teh in I Told Sunset About You, a coming-of-age drama that resonated deeply with audiences. The show's emotional depth and Billkin's raw performance earned widespread praise, and it became a cultural touchstone in the BL genre. He returned for the sequel I Promised You the Moon in 2021, which further solidified his reputation as a serious actor.

In 2024, he starred as M in How to Make Millions Before Grandma Dies, a family drama that became a box office and critical success. Directed by Pat Boonnitipat, the film showcased Billkin's range beyond romance. He also appeared in The Red Envelope (2025) and continued to release music, balancing his dual careers. In 2026, he graduated with a master's degree in Entrepreneurship from a UK university and was announced to star in GDH's 'Untitled Snooker Project,' directed by Baz Poonpiriya and produced by Vanridee Pongsittisak, marking a new chapter in his career. [edit]

Billkin's public image is that of a thoughtful, earnest artist who takes his craft seriously. He is known for his intense, emotionally charged performances, but off-screen he comes across as humble and approachable. His fashion sense has evolved from casual streetwear to high-end designer, particularly after his association with Gucci. Fans appreciate his willingness to take on complex, non-stereotypical roles, and his music often explores themes of love and identity. He has a strong social media presence, with over 4 million Instagram followers, where he shares behind-the-scenes moments and personal reflections. His fanbase, known as 'Billkiners,' is known for its loyalty and creativity, often organizing fan projects and charity drives in his name. [edit]

Putthipong Assaratanakul, known globally as Billkin, has cultivated a devoted following that transcends the typical boundaries of Thai entertainment. His fanbase generally self-identifies simply as fans of Billkin or uses variations like 'Billkiners,' though this is not an exclusive or formalized title; there is no single, officially designated fandom name for Billkin. This community mobilizes for massive streaming campaigns, coordinates birthday tributes with subway advertisements across Thailand, and drives charitable donations in his name. The cultural mythology surrounding him centers on the 'Sunset Era' sparked by his role as Teh in *I Told Sunset About You*, where legendary crowd reactions at screenings and spontaneous gatherings at filming locations in Phuket became defining moments of shared emotional experience. Following his transition into solo music and film stardom, the fandom celebrated his 2024 appointment as a Gucci muse and his 2026 graduation from University College London with a Master's degree, reinforcing a narrative of him as a 'scholar-celebrity.' Recent projects like *How to Make Millions Before Grandma Dies* have further energized these rituals, with fans organizing group watch parties and supporting elderly care foundations. Despite this global reach and highly active community, iFANN's Global Fame Engine evaluated Putthipong Assaratanakul in August 2026 and determined he currently holds no placement in the published rankings, meaning he does not appear in the Global Top 1,000 or any Top-100 scope list.[edit]

Putthipong's professional nickname 'Billkin' stems from his childhood admiration for the Pokémon character Bill, a moniker he adopted early in his career. A trained Muay Thai practitioner, he frequently demonstrates his skills during interviews and maintains an impressive sneaker collection exceeding 100 pairs. In 2023, he was appointed a regional ambassador for Gucci, seamlessly blending his fashion and entertainment identities. He has expressed a dream collaboration with the late singer Phum Viphurit, whose music deeply influenced him. Fans often speculate about his real-life bond with co-star Krit Amnuaydechkorn, though the duo playfully denies they are best friends. Beyond established facts, a story persists regarding the filming of *I Told Sunset About You*: years after production wrapped, fans gathered at the location to recreate scenes, causing traffic disruptions that media outlets cited as proof of the show's enduring impact. Another iconic moment occurred when news of his Master's degree from UCL went viral, shifting public perception toward viewing him as an intellectual figure alongside his status as a star.[edit]

Billkin has kept his family largely out of the spotlight, but he has mentioned in interviews that his parents were supportive of his career from the start. His mother, in particular, was a strong influence, encouraging him to pursue his passions. He has a younger sister, but her name has not been publicly shared. The family's Thai-Chinese heritage is something Billkin has celebrated, often incorporating traditional elements into his work. He currently lives in Bangkok, where he is close to his family, and has spoken about how their values keep him grounded despite his fame. [edit]

Billkin has worked closely with director Pat Boonnitipat on How to Make Millions Before Grandma Dies, a collaboration that earned both critical and commercial success. He is also set to work with director Baz Poonpiriya and producer Vanridee Pongsittisak on GDH's upcoming snooker project. His frequent co-star Krit Amnuaydechkorn has become a widely recognized on-screen pairing, and the two share a strong friendship off-screen. Billkin was also part of the Nadao Bangkok roster, alongside other Thai talents like Sunsweety and PP Krit. [edit]

Billkin has kept his romantic life private, and as of 2026, he is reportedly single. There have been rumors linking him to co-stars, particularly Krit Amnuaydechkorn, but neither has confirmed any relationship. He has stated in interviews that he prefers to keep his personal life separate from his public persona, and that he is currently focused on his career and education. While fans have speculated about various pairings, no credible sources have confirmed any romantic partnerships. [edit]

Per iFANN's editorial analysis, Billkin's net worth as of 2026 stands at $8 Million. This substantial valuation reflects a diverse income portfolio anchored by high-profile acting roles in series and films, successful music releases, and lucrative brand endorsements. His tenure as a prominent ambassador for Gucci remains a cornerstone of his financial success, complemented by partnerships across luxury fashion and beauty sectors. By early 2026, his brand portfolio had expanded significantly into regional markets, signaling strategic growth beyond his home territory. Moving beyond traditional celebrity earnings, he has ventured into business ownership, aligning with a trend among Thai stars to become founders. His pursuit of a master's degree underscores a calculated approach to securing long-term financial stability independent of the entertainment industry.[edit]

While specific award wins for Billkin are not documented in the available sources, his performances have been widely acclaimed by critics and audiences alike. His role in I Told Sunset About You is often cited as a landmark in Thai BL television, and the series received numerous nominations and wins at regional award shows, with Billkin's portrayal being a highlight. His film How to Make Millions Before Grandma Dies also garnered critical praise, though exact award outcomes are not listed here. [edit]