Yoo Ah In is a South Korean actor. He attended Konkuk University, where he majored in Film. He began acting in 2003 when he made a small appearance on the television show Sharp 1. He then acted in the movie Boys of Tomorrow. The movie was a huge success with fans. His acting was praised by critics and he won two awards for best new actor. In 2007, He acted in the film Shim’s Family.The exciting adventure show was another big hit with viewers. He then acted as one of the main characters in the movie Antique, which was based on the successful Japanese manga, or comic book, called "Antique Bakery". Like the manga, the Korean film was a success and helped to make him even more of a star.