Known for his roles in such series as Guardian Angel, Secret, and Mr. Q, this South Korean matinee idol also became one half of a vocal music duo called The Blue. For his role in the television series A Gentleman's Dignity, he earned two 2012 SBS Drama Awards.
Early in his career, in appeared in the television series Keep Your Voice Down and in the film Don Quixote On Asphalt.
After ending his association with The Blue, he released nine solo albums between 1992 and 2003.
A native of Seoul, South Korea, he studied film at the Seoul Institute of the Arts.
He appeared in director Park Chan-wook's 1997 film, Trio.