Yoon Shi Yoon

Yoon Shi-yoon (윤시윤)(Born 26 September 1986) is a South Korean actor whose real name is Yoon Dong-goo. He first starred in the TV Series High Kick! (season 2) (2009), a 100+ episode drama in which he played a rebellious, albeit good-hearted teenage son. King of Baking, Kim Tak Goo (2010) was his first lead role, and shot him to fame as the earnest, lovable character Kim Tak-goo. (1986-09-26) September 26, 1986 (age 25)

http://en.wikipedia.org/wiki/Yoon_Shi-yoon