Oh Dal-su, born on June 15, 1968, is a highly respected South Korean character actor whose career spans over three decades across television, film, and stage. He is best known for his memorable supporting roles in the works of acclaimed director Park Chan-wook, having appeared in six of the filmmaker's projects, including the iconic Oldboy in 2003, If You Were Me also that year, Lady Vengeance in 2005, I'm a Cyborg, But That's OK in 2006, Thirst in 2009, and the upcoming No Other Choice in 2025. His ability to embody a wide range of characters, from menacing villains to comedic sidekicks, has made him a staple in Korean cinema.
Oh Dal-su began his acting career in the late 1980s, initially focusing on theater before transitioning to film and television. His early work on stage honed his versatility, allowing him to take on diverse roles that showcased his dramatic and comedic talents. He gained widespread recognition for his collaborations with Park Chan-wook, where his performances in the revenge thriller Oldboy and the darkly humorous Thirst demonstrated his skill in bringing complex, often eccentric characters to life. These roles solidified his reputation as one of South Korea's most reliable character actors.
In 2015, Oh received critical acclaim for his role in the epic family drama Ode to My Father, directed by JK Youn. His portrayal of a supporting character in the film, which chronicles the life of a Korean man through decades of historical upheaval, earned him prestigious honors, including a Grand Bell Award and a Blue Dragon Film Award for Best Supporting Actor. These accolades marked a career high, highlighting his ability to elevate ensemble casts with nuanced performances.
Throughout his career, Oh has maintained a steady presence in both film and television, often appearing in projects that blend drama and dark comedy. His extensive filmography includes notable works such as The Thieves, The Face Reader, and Assassination, where he held his own alongside top Korean stars. Despite facing personal controversies in the late 2010s, he has continued to work, with recent roles in The Battle of Jangsari and the upcoming No Other Choice signaling his enduring relevance in the industry. Oh Dal-su remains a significant figure in Korean entertainment, celebrated for his longevity and the depth he brings to every role.