Yoon Si-yoon (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.
Yoon Shi-yoon in movie bubbibubi
Yoon Shi-yoon so cute
Yoon Shi-yoon so sweet
Yoon Shi-yoon so cool