Seo Young-hee (서영희) is a South Korean actress born on June 13, 1979, in Seoul, South Korea. She began her career in stage plays before making her feature film debut in 2002. Seo earned international critical acclaim for her powerful roles in psychological and thriller films, notably starring in Na Hong-jin's hit thriller The Chaser (2008) and Jang Cheol-soo's Bedevilled (2010). Her compelling lead performance in Bedevilled swept multiple Best Actress awards across major Korean and international film festivals. Throughout her career, she has maintained a versatile presence in both cinema and television, with notable roles in films such as The Wrath (2018) and Night of the Undead (2020), as well as television dramas including Nokdu Flower (2019).