Choosakul was born in Saraburi in central Thailand, graduated from Assumption College and received bachelor's degree from Faculty of Communication Arts, Chulalongkorn University.
He became widely known in 1997 as Moo Chien (Sgt Chien) in Dang Bireley's and Young Gangsters, a former mafia police officer who is a senior friend of a group of teenage gangsters led by Dang Bireley.
[2] Since then he has acted in many films and TV series as a supporting actor and has been an assistant director in many Thai and international films such as The Legend of Suriyothai (2001), Stealth (2005), Rambo IV (2008) etc.
[3] In terms of personal life, he was married to Chamaiporn Kalayanamitr for more than 30 years.
[1] As actor film TV series As assistant director