Suradej Pinnirat, nicknamed Bas, is a singer and actor born in Bangkok, but raised in Chiang Mai, Thailand. He has a Thai-American-Chinese ancestry. Actor Chaiyapol Julien Poupart is his cousin.

He studied at Montfort College until junior high school and moved to the Chongfaxin Shengvanichbamrung School, a bilingual private school (Thai-Chinese), but when Bas decided to quit as a table tennis player and become an actor, he switched to GED (General Educational Development). He is currently studying at the Faculty of Communication Arts, University of the Thai Chamber of Commerce.

He was a youth tennis player at District 5 Representative (Northern Region). At that time, Bas was participating in table tennis at 'Thailand National Youth Games', where he was runner-up 2. But was replaced later, so he decided to change his career path from sport to becoming a singer-actor and moved to Bangkok. At the beginning, Bas was often given extra roles, so he wasn't very well known. Eventually, he was selected as one of the lead actors in the Thai BL drama '2Moons: The Series' (2017), starting to get popular.

In 2018, he appeared as the main character of the Thai short film 'The Right One' and the same year he joined the recurring cast of the Chinese series 'Cinderella Chef'.

He debuted in February 2018 as a vocalist in thai boy group SBFIVE along Tae Darvid, Kimmon Varodom, Tee Tanapol and Copter Panuwat.

In 2023 he left Starhunter Entertainment and signed as talent under Studio Wabi Sabi.

(Source: Wikipedia, MyDramaList) Edit Biography