Janaprakal Chandruang (Thai: ชนประคัลภ์ จันทร์เรือง, RTGS: Chonprakhan Chanrueang; born August 1, 1954), also familiarly known by his nickname Kru Chang (ครูช่าง, "master Chang") is a Thai actor, television drama director and producer, screenwriter and acting coach.
Janaprakal was born and raised in the home of Luang Pradit Pairoh, who was recognized as "maestro of Thai classical music".
During that time, he also performed many roles in stage plays, television dramas, and movies, mostly supporting actors.
The film is based on a true historical story about an overseas Chinese serial killer who killed and consumed the flesh of children in the late 1950s.
[2] Around 1994, he turned his back on the showbiz, by working only behind the scenes and is the founder of Moradok Mai (มรดกใหม่, "new heritage") a place that is both a theater and a boarding school for Thai youth to promote Thai performing arts based in Pathum Thani's Khlong Hok on the north outskirts of Bangkok.