Petchtai Wongkamlao
Petchtai Wongkamlao, widely known by his stage name Mum Jokmok, is a prominent Thai actor, comedian, director, and screenwriter. Born in Yasothon Province, Thailand, in 1963, he has established a significant career in the Southeast Asian film industry, contributing widely to action films, comedies, and dramatic projects.

Film Career
Petchtai has appeared in numerous high-profile Thai cinematic works. He gained international recognition for his roles alongside Tony Jaa in martial arts films such as Ong-Bak: Muay Thai Warrior (2003) and Tom-Yum-Goong (2005). In addition to acting in action cinema, he has starred in a wide range of comedic and dramatic feature films, including Midnight My Love (2005) and The Bodyguard (2004).
Directing and Writing
Beyond his work as a performer, Petchtai has directed and written several feature films. His directorial credits include The Bodyguard (2004), The Bodyguard 2 (2007), and the Hello Yasothorn film series, where he also frequently served as a screenwriter.