Prachaya Ruangroj

Prachaya Ruangroj, professionally known by the nickname Singto, is a Thai actor who gained widespread public recognition for his portrayal of Kongphop in the 2016 television series SOTUS. Born on July 28, 1994, in Bangkok, Thailand, he has built a prominent acting career featured across various popular domestic television productions and streaming platforms.

Ruangroj completed his primary education at Bharat Vidyalaya School before pursuing secondary studies in science and mathematics at Suankularb Wittayalai School. He initially enrolled in Kasetsart University's Faculty of Economics to study agricultural economics. Later, he earned a Bachelor of Communication Arts degree in Broadcasting and Streaming Media Production from Bangkok University.

His professional performance career began with his lead acting debut in SOTUS (2016), starring alongside Perawat Sangpotirat (Krist). Following the success of his debut role, Ruangroj reprised the character of Kongphop in two subsequent project sequels: SOTUS S in 2017 and Our Skyy in 2018.

In late 2018 through early 2019, Ruangroj portrayed the character Earth in the drama series Friend Zone, a role he later revisited in the 2020 follow-up project Friend Zone 2: Dangerous Area. During 2019, he starred as Med in He's Coming to Me alongside co-star Pawat Chittsawangdee, a performance that secured the duo the Best Dramatic Scene award at the 2020 LINE TV Awards.

Expanding his television portfolio, Ruangroj appeared as Maitee in the ensemble comedy series I'm Tee, Me Too in 2020, and took on roles in Turn Left Turn Right (2020), Baker Boys (2021), and Paint with Love (2021). Upon the conclusion of his contract with talent agency GMMTV in April 2021, he launched a personal YouTube channel before re-signing with the management company in 2024. His subsequent acting credits include roles in Shadow (2023) and The Ex-Morning (2025).