Song Young-gyu (송영규) is a South Korean actor born on April 18, 1970, in South Korea. He made his debut in 1994. He is best known as Yoon Se-hoon in The Defects (2025).

Early life

Song Young-gyu was born on April 18, 1970, in South Korea. He began acting in 1994 and has worked for more than thirty years.

Career and breakthrough

Song Young-gyu played Yoon Se-hoon in the action thriller The Defects (2025), a drama about children who escape from a criminal group. His role in the new drama is his best-known credit on Oxfea, and his long career has made him a steady supporting actor in Korean television.