Penpak Sirikul (Thai: เพ็ญพักตร์ ศิริกุล; RTGS: Phenphak Sirikun), nickname Tai (ต่าย), is an actress and model, well known as Thai sex symbol and model in the 70s-80s later[1][2][3] the 2,000-year Woman.

[4] Born in Chiang Mai,[5] her real name is Wanphen Khuenkaeo.

After winning a beauty contest when she was 19, Penpak became a swimsuit model.

Penpak's first film in 1980 was Dok Sanoh Ban Chao (The sanoh flower blooms in the morning), a drama directed by Jazz Siam.

That same year she starred opposite Sorapong Chatree in Fai Narok Khum Lokan (Hell fire).