Jerry Yan( 言承旭 / Yan Cheng Xu) was born Liao Yangzhen in Taoyuan, Taiwan. He is of Atayal and Hakka descent, is a Taiwanese actor, model and singer. A former member of boy band group F4, Yan is known for his lead role as Daoming Si in the Taiwanese drama Meteor Garden and its sequel.

Yan became a model in 2000, after winning the 1998 TVBS Modelling Competition and Men's UNO modelling competition. He filmed advertisements and starred in music videos. He began his acting career in 2000, with a supporting role in Spicy Teacher.

He is also an ambassador for charitable organization World Vision Taiwan, he has an adopted child, Baldan, in Mongolia. He speaks Mandarin and Taiwanese, and was previously learning English to communicate better with fans around the world. He understands and speaks Japanese. Currently he is taking lessons in Japan to further his knowledge in that language.

He has always encouraged his fans to spend money on charity, and his fans, known as 旭迷, have done many charity works all around the world.