Chermarn Boonyasak is a Thai actress born in Bangkok, Thailand on September 15, 1982. Boonyasak is most recognized for her role in the film The Love of Siam. Her nickname is “Ploy,” and this  means “gem” or “jewel.”

Boonyasak has received several movie awards including Best Performance by an Actress in a Supporting Role from the Thailand National Film Association Awards in 2007, Best Supporting Actress from the Bangkok Critics Assembly Awards in 2007, Best Actress in a Supporting Role from the Star Entertainment Awards in 2007, and Best Actress in a Film from the Top Awards in 2011.

She  first began acting in 1995 and has appeared on TV shows such as Buang Barp, Samee Tee Thra, Ruk Mai Mee Wun Tay, and several more.