Thitiwat Ritprasert (; born 26 March 1997), nicknamed Ohm (), is a Thai actor. He is best known for his roles in Until We Meet Again (2019).
Early life and education Thitiwat was born in Chiang Rai, Thailand. He graduated from Rajamangala University of Technology Thanyaburi with a bachelor's degree in the Faculty of Mass Communication Technology.
Career Thitiwat entered the entertainment industry by participating in the CH8 Asia New Star Model Contest Face of Thailand 2016, where he won the competition. He also received a special award at the Asia Model Festival FACE of ASIA 2016.
In 2017, he made his acting debut in the television drama Jai Luang on Channel 8.
In 2019, his popularity increased significantly after portraying the lead role as Dean Ratthanon Wongnate, a university student, the swimming club president, and one of the central characters whose connection to a past-life romance drives the narrative in the television series Until We Meet Again, alongside Natouch Siripongthon (Fluke). The series is based on the novel The Red Thread by Lazy Sheep.
On September 1, 2024, he joined the production and talent agency GMMTV. This move marked his departure from his former company, and at that time his last series under the previous studio had not yet been released or aired—leaving fans uncertain whether it would ever be broadcast. Only weeks after the transfer, his former network, Channel 8, announced the upcoming airing of that final project: Suek Saneha Kraithong Chalawan (also known as Love of the Two Realms). The series draws inspiration from Thai folklore “Kraithong,” depicting the story of Chalawan—the powerful crocodile king who becomes infatuated with the daughters of a wealthy man, Tapaokaew and Tapaothong. Driven by desire, he abducts the sisters and brings them to his underwater palace. Chalawan is portrayed as a formidable and nearly unbeatable antagonist—until the warrior Kraithong arrives, defeats the crocodile king, and rescues the sisters, who later become his wives. Although Chalawan was a villain in the series, Thitiwat’s portrayal received widespread praise. Viewers admired his performance, and he gained new fans, with many affectionately referring to him as “Chalawan” in online spaces and everyday conversation—demonstrating how the character left a lasting impact despite being an antagonist.
On November 26, 2024, Thitiwat was announced as part of the main cast of My Romance Scammer, alongside Panachai Sriariyarungruang (Junior) and Jiruntanin Trairattanayon (Mark). He was initially announced to be paired with Jeeratch Wongpian for the series. On August 19, 2025, it was officially confirmed that Poon Mitpakdee would replace Jeeratch in the main role and become Thitiwat’s on-screen partner. The series later aired on February 1, 2026, marking the pair’s first on-screen project together following the casting announcement.
On November 25, 2025, Thitiwat and Poon were announced as part of the upcoming GMMTV 2026 series Cupid's Ghost in supporting roles. They appear alongside lead actors Pirapat Watthanasetsiri (Earth) and Sahaphap Wongratch (Mix), with Kridchayaan Attavipach (Prom) also in a supporting role.
Filmography Television
Year Title Role Channel Notes 2017 Jai Luang Channel 8 Supporting role 2019 Dong Poo Dee Rum Pichairanarong Leh Runjuan Athip Until We Meet Again "Dean" Ratthanon Wongnate LINE TV Main role 2020 Love, Lie, Haunt The Series: The Haunted Corpse Tak Channel 8 Supporting role Poot Ratikarn Pha Mueang Romantic Blue Mai Main role Saneha Stories 3: Saneha Maya Pete TV Thunder 2021 Close Friend Season 1 Pierce Viu 2022 Buang Bai Bun Eku Channel 8 Supporting role Close Friend Season 2 Pierce Viu Main role Oh! My Sunshine Night "Kim" Kimhant Kannakool AIS Play Between Us "Dean" Ratthanon Wongnate One31 Supporting role 609 Bedtime Story Mum WeTV Main role 2023 Bake Me Please ShinChannel 8 2024 Lustful Phantom Inchaweng Love of the Two Realms Chalawan Quarantine Jon Thai PBS Perfect 10 Liners TorGMM 25Guest role 2025 The Ex-Morning Paul 2026 My Romance Scammer "Yu" Itsara Preechajit Main role rowspan="2"; Ing rowspan="2"; Supporting role
Film Year Title Role Note 2023 Step Up To Runway Marwin Main role
Discography Singles As lead artist Year Title 2021 "พื้นที่เสี่ยง"
Collaborations Year Title Artist 2021 "ยืนหนึ่ง" PMCปู่จ๋าน ลองไมค์ x Ohm Fluke 2022 "ถ้าเธอคิดเหมือนกัน" No One Else "Falling For You" Ohm Fluke
Soundtrack appearances Year Title Album Notes 2019 "โชคดีแค่ไหน"Until We Meet Again OST 2020 "เราจะกลับมาพบกันเสมอ" "บอกรักในใจ" Poot Ratikarn OST "โลกทั้งใบให้นายคนเดียว2020" Romantic Blue OST 2022 "อีกนานมั้ย (How Long)" Close Friend โคตรแฟน 2 OST "609" 609 Bedtime Story OST Acoustic + Special version 2026 "รักหลอก (Love or Lie)" My Romance Scammer OST
Awards and nominations Year Awards Category Nominated work Result 2021 Fever Awards 2020 Couple of the Year with Natouch Siripongthon Super Fever Awards 2021 Line TV Awards Best Dramatic SceneUntil We Meet Again Best Kiss Scene Best Couple Until We Meet Again Siam Series Awards 2021 Imaginary Couple with Natouch Siripongthon 2022Fever Awards 2021 Favorite Series Romantic Blue Imaginary Couple with Natouch Siripongthon Star Media 2022 International Awards 2023 Asia Top Awards 2023 Best Actor
References
External links