Oh Dal-su

Oh Dal-su (Korean: 오달수; born 15 June 1968) is a South Korean character actor who has appeared on television, film, and stage. His acting career spans over 35 years. Oh is best known for his supporting roles in director Park Chan-wook's films, having appeared in six of Park's films: Oldboy (2003), If You Were Me (2003), Lady Vengeance (2005), I'm a Cyborg, But That's OK (2006), Thirst (2009) and No Other Choice (2025) .

In 2015, Oh received praise for his role in Ode to My Father (2014), for which he won a Grand Bell Award and a Blue Dragon Film Award.