Chartchai Ngamsan is a Thai actor. His most notable role is as Black Tiger in Tears of the Black Tiger, a 2000 Thai western film. Before that, he had a supporting role in Dang Bireley's and Young Gangsters, also playing a character named Dum, who was a sidekick to Puu Bottlebomb, portrayed by Supakorn Kitsuwon. In Tears of the Black Tiger, Chartchai took the lead role and Supakorn portrayed an unwilling sidekick. He got a Bachelor from Bangkok University.