Jimmy O. Yang (born June 11, 1987) is a Hong Kong-American actor, stand-up comedian, and writer. He is best known for starring as Jian-Yang in the HBO comedy series Silicon Valley.O. Yang made his television debut on the CBS series 2 Broke Girls, and his first late night stand-up appearance on The Arsenio Hall Show. In season 9 of It's Always Sunny in Philadelphia, he played the character Tang-See. Yang also appeared in an episode of Criminal Minds as Nathan Chow, a high-school student who suffered a psychotic break. He was once a writer/consultant for the Harlem Globetrotters, and voiced roles in the video game Infamous Second Son. In 2017, he was cast as Bernard Tai in Crazy Rich Asians directed by Jon M. Chu.