Yoo Yeon Seok is a popular South Korean actor. Born on April 11, 1984, he made his acting debut in the 2003 film “Oldboy” while he was still in high school. He resumed his acting career five years later after he graduated from college. Although his birth name is Ahn Yeon Seok, his agency recommended he change his stage name to Yoo Yeon Seok. He is best known for his roles in the popular television dramas “Reply 1994” (2013), “Gu Family Book” (2013), “Warm and Cozy” (2015) and “Romantic Doctor, Teacher Kim” (2016), as well as his role in the box office hit film “A Werewolf Boy“ (2012).