A Passin's acting career started when he was 5 years old. His first film was Song Rao, when he was 5 years old. He continued to be in films and he also acted in dramas, up until he was 12 years old. Passin decided to take a break from the entertainment bussiness to pursue education. He finally returned after graduating from Runsit University. He cameback as a cameo in various dramas and commercials for about 3 years. Someone saw potential in him and he was given a role in the film, Fah Talai Jon
