Yoo Yeon-seok

Ahn Yeon-seok, better known by the stage name Yoo Yeon-seok, is a South Korean actor. After making his acting debut in 2003 with a small role in Oldboy, he resumed his acting career in 2008. His notable works include the films Re-encounter, Architecture 101, A Werewolf Boy, Whistle Blower, and Love, Lies, as well as the television series Reply 1994, Dr. Romantic, Mr. Sunshine, Hospital Playlist, and When the Phone Rings.