Kim Sung-oh, is a South Korean actor, he is best known for his supporting roles in which South Korean action-thriller film starring Won Bin and written and directed by Lee Jeong-beom? 
Kim Sung-oh:  He is best known for his supporting roles in the television series "Secret Garden" and the film "The Man from Nowhere". The Man from Nowhere (film): The Man from Nowhere () (English: "Mister") is a South Korean action-thriller film starring Won Bin and written and directed by Lee Jeong-beom.
The Man from Nowhere