Sammon official photo - Thai novelist, screenwriter and family doctor, screen story writer of Payback (2026)

Sammon

AuthorScreenwriterThai

BIOGRAPHY

Sammon (Thai: แซมม่อน; born June 13, 1991) is the pen name of Isaree Siriwankulthon, a Thai novelist, screenwriter and practising family doctor from Chiang Mai. She is credited with the screen story for the 2026 revenge thriller Payback, adapting samK’s Korean webtoon for Thai television, and is one of the most adapted authors in the Thai Boys’ Love industry.

Medicine is not a former career she left behind — it is the source of her writing. Her best-known novels are built on clinical and forensic settings: Manner of Death (พฤติการณ์ที่ตาย), which turns on a forensic pathologist, and Triage (ปฏิบัติการรัก), named for the emergency-room sorting protocol. She has also worked as a medical consultant on drama productions, including Once a Doctor, Always a Doctor, and is known in Thai fandom as Dr. Sam (หมอแซม).

Her documented screen career begins in 2019, when Triage was adapted as a film with her credited on the original story. Manner of Death followed as a series in 2020. From there the volume is unusual for a working physician: Bite Me (2021), on which she took both writing and creator credits across eleven episodes; the Triage series (2022) across thirteen; Make a Wish (2023); and Dead Friend Forever (2023), where she wrote the screenplay for all twelve episodes.

2024 was her busiest year: screenplays for 4MINUTES (eight episodes) and Petrichor (ten), plus the original story for Spare Me Your Mercy (eight). 4MINUTES is the direct line to Payback — its producer, Rungrapee Kingkaew, also produced Payback, and three Payback cast members appeared in it: Fuaiz Thanawat Shinawatra, Lilly Sarinya Olsson and, in Spare Me Your Mercy, Gandhi Wasuvitchayagit and Pu Yasaka Chaisorn.

Her published novels include Manner of Death, Triage, Make a Wish (ภารกิจนายเทวดา), Grab a Bite (ส่งร้อน เสิร์ฟรัก), Transplant (ปลูก ถ่าย ตาย) and Lost on the River. She was born on June 13, 1991, making her a Gemini born in the year of the Goat, and posts as sammonscene on Instagram and @Sammon_scene on X. MyDramaList records a cameo appearance by her in Payback itself.

PROFILE DETAILS

Native Name
แซมม่อน อิสรีย์ ศิริวรรณกุลธร
Real Name
Isaree Siriwankulthon
Nickname
Sammon (แซมม่อน), Sam, Dr. Sam (หมอแซม)
Pronouns
she/her
Born
(Age 35)
Birthplace
Chiang Mai, Thailand
Gender
Female
Western Zodiac
Gemini ♊
Chinese Zodiac
Goat 🐐
Profession
AuthorScreenwriter
Nationality
Thai
Debut
2019 — Triage (2019) as original story – earliest dated screen credit; her novels are undated in available sources
Years Active
2019-present
Languages
Thai (native)
Skills
Novel Writing, Screenwriting, Family Medicine, Medical Consulting, Story Adaptation

FILMOGRAPHY — TV SERIES (1)

Payback (2026) Thai BL series poster featuring Minlee Thanakorn Wichanukhor as Sun and TopTap Jarukit Kaewmoonrueang as Jay
Payback
2026
Screenwriter

FUN FACTS

  • She is a practising family doctor who writes BL novels on the side. 🩺
  • Thai fandom calls her Dr. Sam (หมอแซม), which is exactly what she is. 👩‍⚕️
  • Manner of Death turns on a forensic pathologist — she knew the material. 🔬
  • Triage is named after the emergency-room protocol for sorting patients. 🚨
  • She has been a medical consultant on other people’s dramas too. 📋
  • She is from Chiang Mai, like both Payback leads. 🏔️
  • She shares a birthday, June 13, with Payback’s Shogun Paramee — nine years apart. 🎂
  • Her 2024 output was three separate series in one year. 📚
  • MyDramaList records a cameo appearance by her inside Payback. 🎬
  • Five of her novels have been turned into series or films. 🎞️
  • She is a Gemini, born on the thirteenth of June, and a Goat in the Chinese zodiac. ♊
  • Both her Instagram and X handles end in “scene” — sammonscene and Sammon_scene. 📱

TRIVIA

  • Sammon (แซมม่อน) is a pen name. TMDB gives her legal name as Isaree Siriwankulthon (อิสรีย์ ศิริวรรณกุลธร) while MyDramaList records it as Asama Isaree Siriwankulthon; the shorter TMDB form is used here and the variant noted. She is also known as Sam and Dr. Sam (หมอแซม).
  • She was born on June 13, 1991 in Chiang Mai. TMDB and MyDramaList agree on the date, making her 35 as of August 2026.
  • She is a practising family doctor, not a former one. Both TMDB and MyDramaList describe her that way, and MyDramaList adds that she has worked as a medical consultant on productions including Once a Doctor, Always a Doctor.
  • Her medical background runs straight through her fiction: Manner of Death (พฤติการณ์ที่ตาย) centres on a forensic pathologist, Triage is named for the emergency-room sorting protocol, and Spare Me Your Mercy (2024) is a medical-ethics story.
  • She is credited with the screen story on Payback (2026) across all ten episodes, adapting samK’s Korean webtoon — her first work from someone else’s source material rather than her own.
  • Her screenplay credits include Dead Friend Forever (2023, twelve episodes), 4MINUTES (2024, eight) and Petrichor (2024, ten). Her original-story credits include Manner of Death (2020), Triage (2019 film and 2022 series), Make a Wish (2023) and Spare Me Your Mercy (2024).
  • 4MINUTES is the direct bridge to Payback: it shares producer Rungrapee Kingkaew and two cast members, Fuaiz Thanawat Shinawatra and Lilly Sarinya Olsson. Two more Payback actors, Gandhi Wasuvitchayagit and Pu Yasaka Chaisorn, appeared in her Spare Me Your Mercy.
  • Her published novels include Manner of Death, Triage, Make a Wish (ภารกิจนายเทวดา), Grab a Bite (ส่งร้อน เสิร์ฟรัก), Transplant (ปลูก ถ่าย ตาย) and Lost on the River.
  • She holds IMDb name record nm12225219, posts as sammonscene on Instagram and @Sammon_scene on X, and MyDramaList records a cameo appearance by her in Payback itself.

EDUCATION

Qualified as a medical doctor and works as a family physician; both TMDB’s biography and MyDramaList’s profile describe her as a family doctor, and Thai fandom uses the nickname Dr. Sam (หมอแซม). No source names the medical school she attended or her graduation year, so neither is stated here.

FREQUENTLY ASKED QUESTIONS

Who is Sammon?

Sammon (Thai: แซมม่อน), born June 13, 1991, is the pen name of Isaree Siriwankulthon, a Thai novelist, screenwriter and practising family doctor from Chiang Mai. She is credited with the screen story for the 2026 revenge thriller Payback.

Who wrote Payback the Thai series?

Sammon is credited with the screen story across all ten episodes, adapting the original Korean webtoon by samK. The two are different writers: samK created the source material, Sammon wrote the Thai screen version.

How old is Sammon?

She was born on June 13, 1991, which makes her 35 years old as of August 2026. Her Western zodiac sign is Gemini and her Chinese zodiac sign is the Goat. TMDB and MyDramaList agree on the date.

Is Sammon really a doctor?

Yes, and a practising one. Both TMDB and MyDramaList describe her as a family doctor, and Thai fandom calls her Dr. Sam (หมอแซม). She has also worked as a medical consultant on drama productions, including Once a Doctor, Always a Doctor.

What is Sammon's real name?

TMDB gives it as Isaree Siriwankulthon (อิสรีย์ ศิริวรรณกุลธร). MyDramaList records a longer form, Asama Isaree Siriwankulthon. BLGLFLIX uses the TMDB version and notes the variant rather than choosing silently.

What novels has Sammon written?

Manner of Death (พฤติการณ์ที่ตาย), Triage, Make a Wish (ภารกิจนายเทวดา), Grab a Bite (ส่งร้อน เสิร์ฟรัก), Transplant (ปลูก ถ่าย ตาย) and Lost on the River, among others.

What is Sammon best known for?

Manner of Death, the forensic-pathology BL novel adapted as a series in 2020, and Triage, adapted as both a 2019 film and a 2022 series. Both draw directly on her medical training.

What series has Sammon written?

Triage (2019 film and 2022 series), Manner of Death (2020), Bite Me (2021), Make a Wish (2023), Dead Friend Forever (2023), 4MINUTES (2024), Petrichor (2024), Spare Me Your Mercy (2024), Love Public Company and Spirit, and Payback (2026).

Why are so many of Sammon's stories about medicine?

Because she works in it. Manner of Death turns on a forensic pathologist, Triage is named for the emergency-room sorting protocol, and Spare Me Your Mercy is built on medical ethics. The clinical detail in her work comes from professional knowledge rather than research.

Is Payback based on Sammon's novel?

No. Payback originates with the Korean writer samK, whose web novel and webtoon the series adapts. Sammon wrote the Thai screen story from that source, making it a departure from her usual practice of adapting her own work.

Did Sammon work with the Payback cast before?

Yes, extensively. Fuaiz Thanawat Shinawatra and Lilly Sarinya Olsson both appeared in her 4MINUTES (2024), and Gandhi Wasuvitchayagit and Pu Yasaka Chaisorn both appeared in her Spare Me Your Mercy (2024).

Does Sammon appear in Payback?

MyDramaList records a cameo appearance by her in the 2026 series. It is listed among her limited acting credits, alongside a guest appearance on Bite Me: Special Talk in 2021.

Where is Sammon from?

Chiang Mai, in northern Thailand. Both TMDB and MyDramaList record it. It is the same province as both Payback leads, Min Thanakorn Wichanukhor and Toptap Jarukit Kaewmoonrueang.

Where did Sammon study medicine?

No source names her medical school or graduation year. Her qualification as a family doctor is well documented across TMDB and MyDramaList, but the institution is not, so BLGLFLIX does not state one.

What is Sammon's Instagram?

Her Instagram is @sammonscene and her X account is @Sammon_scene, both recorded in TMDB’s external identifier data. No TikTok, Facebook or YouTube account has been independently verified as official.

How tall is Sammon?

No height, weight or physical measurement has been published for her. Those figures are routinely published for Thai performers but not for writers, so BLGLFLIX leaves all such fields blank.

Has Sammon won any awards?

No award wins or nominations are on record for her as of August 2026. Given the volume of her adapted work this most likely reflects a gap in English-language coverage rather than an absence of recognition, but BLGLFLIX does not list unverified honours.

Does Sammon have a Wikipedia page?

She has no Wikipedia article of her own in any language as of August 2026, and TMDB carries no Wikidata identifier for her. She is named in the English Wikipedia articles for Spare Me Your Mercy and Payback (Thai TV series).

How many of Sammon's works have been adapted?

At least five separate stories have reached the screen: Triage, Manner of Death, Bite Me, Make a Wish and Spare Me Your Mercy, several of them more than once. That makes her one of the most adapted authors in the Thai BL industry.

What is Sammon working on now?

As of August 2026 her most recent credit is Payback, which finished its ONE 31 broadcast on August 1, 2026. No new novel or series has been announced. BLGLFLIX will add credits as they are officially confirmed.

Biographical details and any photograph on this page come from TMDB and the sources named in our editorial notes. This product uses the TMDB API but is not endorsed or certified by TMDB. BLGLFLIX is an independent reference site with no affiliation to the person profiled or their agency, and does not publish speculation about anyone’s private life. Full copyright, correction and takedown policy: Disclaimer.

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