Choi Siwon (Hangul: 최시원, Hanja: 崔始源; born February 10, 1987), also credited as simply SiwonHangul: 시원, Hanja: 始源), is an actor, singer, dancer and a member of South Korean boy band Super Junior. Choi's breakthrough performance was in the 2006 Hong Kong historical action drama film, A Battle of Wits, where he plays the young prince, Liang Shi. (

Credits go to: http://en.wikipedia.org/wiki/Choi_Siwon

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Be sure to watch Siwon's latest 2 ep. drama, The Legend of Hyang-Dan!