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Rhys J. Coiro (born March 12, 1979) is an American film, television and stage actor. Coiro may be best known for his role on the HBO original series Entourage as Billy Walsh. Coiro was born to parents of Italian and Irish descent, and raised in Princeton, New Jersey, where he attended Princeton High School. He graduated with a BFA from the Carnegie Mellon University School of Drama. He has two siblings. Coiro is married to director Kat Coiro; they have two children. Coiro has appeared as recurring characters Billy Walsh on Entourage and Vincent Bianchi on Ugly Betty. He portrayed FBI Agent... MORE

Rhys J. Coiro (born March 12, 1979) is an American film, television and stage actor. Coiro may be best known for his role on the HBO original series Entourage as Billy Walsh. Coiro was born to parents of Italian and Irish descent, and raised in Princeton, New Jersey, where he attended Princeton High School. He graduated with a BFA from the Carnegie Mellon University School of Drama. He has two siblings. Coiro is married to director Kat Coiro; they have two children. Coiro has appeared as recurring characters Billy Walsh on Entourage and Vincent Bianchi on Ugly Betty. He portrayed FBI Agent Sean Hillinger in the seventh season of 24 on FOX. In the fall of 2008, Rhys began starring in Howard Korder's Boys' Life at Second Stage Theatre in New York City. Coiro played Paul in 2010's "30 Days of Night: Dark Days" and had a major role in the Straw Dogs remake. LESS