Jimmy O. Yang (born June 11, 1987) is a stand-up comedian and actor. He stars as Jian-Yang on HBO's Silicon Valley (2014), Bernard Tai in the film Crazy Rich Asians and as real-life hero Dun Meng in the film Patriots Day (2016). As a stand-up, he performed on The Arsenio Hall Show and received a rare standing ovation. Jimmy can also be seen on season 9 of It's Always Sunny in Philadelphia as Charlie's dear friend Tang-See. Jimmy is fluent in three Chinese dialects: Mandarin, Cantonese, Shanghainese.

欧阳万成是一名香港裔美国男演员、单口喜剧演员和作家，以在HBO喜剧《硅谷》饰演靳阳而知名。 1987年6月11日，欧阳万成在香港出生，曾经在香港华仁书院接受一年的教育，13岁时随家人移民美国，希望他借此受到更好的教育。

歐陽萬成是一名香港裔美國男演員、單口喜劇演員和作家，以在 HBO 喜劇《矽谷》飾演靳陽而知名。

1987 年 6 月 11 日，歐陽萬成在香港出生，曾經在香港華仁書院接受一年的教育，13 歲時隨家人移民美國，希望他藉此受到更好的教育。

Jimmy O. Yang é um ator, comediante e escritor norte-americano de Hong Kong, mais conhecido por protagonizar Jian-Yang na série de comédia da HBO Silicon Valley.