Roj Sereeroj Jayaphorn

Roj Sereeroj Jayaphorn (Thai: โรจน์ เสรีโรจน์ ไชยพร; born August 22, 1985) is a Thai film director, actor and content creator, best known online under the persona Roji Sensei (โรจิเซนเซ). He plays Tanaka in GMMTV’s Cherry Magic (2023 to 2024).

His career began behind the camera. He started as an assistant director on television commercials in 2008 and moved into directing from 2010, building more than a decade of advertising work. His public service film “Dear Japan from Phuket” was recognised across Asian advertising festivals, taking the Grande Lotus Roots award at AdFest 2012. He runs the Bangkok-based production-service company 2Hands Films, and has directed commercial work for brands including OPPO and Pepsi.

In 2021 he launched the Roji Sensei channel, a comedy and Japanese-language project in which he performs multiple characters, among them the recurring “Ajarn Somchai” schoolteacher figure, which is why the sources checked also list him under the alternate credit Somchai Sudlor. The channel went viral, and by 2023 his own site reported over 200 million combined views across platforms, with roughly 580,000 TikTok followers and 200,000 on YouTube. He is fluent in Japanese, Thai and English.

His acting break came in October 2023, when GMMTV cast him as Tanaka in Cherry Magic, the twelve-episode adaptation of Yuu Toyota’s manga that ran on GMM25 from December 9, 2023 to March 2, 2024. He followed it in 2024 with the supporting role of Lord Naka in Naka De Salon.

Unlike most of the Cherry Magic supporting cast, Roj is not an agency-signed performer. He came to the role from a directing and creator career rather than through GMMTV’s artist roster, and his acting credits sit alongside continuing work as a commercial director and independent creator. His portfolio is published at roj-j.com, and IMDb additionally credits him in visual effects.