
Oh Dal-su (오달수) is a South Korean actor. Oh Dal-su began his acting career in theater in Busan, and since 2001 has been the head of theater company Singiru Manhwagyeong ("Mirage and Kaleidoscope"). His rich experience on the stage, in local productions such as Ogu, later made Oh an in-demand supporting/character actor on the big screen. Oh has starred in numerous successful films, in roles such as the owner of the organized crime-funded private jail in Oldboy (2003), a former gang boss in Mapado (2005), a weapons smuggler in A Bittersweet Life (2005), a transvestite in Foxy Festival (2010), a Chinese-Korean conman in The Thieves (2012), and a sympathetic inmate in Miracle in Cell No. 7. He also dubbed the voice of the monster in The Host (2006).

Squid Game
TV • 2021

Squid Game
TV • 2021

No Other Choice
MOVIE • 2025

The King's Warden
MOVIE • 2026

Oldboy
MOVIE • 2003

The Servant
MOVIE • 2010

The Host
MOVIE • 2006

Along with the Gods: The Two Worlds
MOVIE • 2017

Lady Vengeance
MOVIE • 2005

Assassination
MOVIE • 2015

The Good, the Bad, the Weird
MOVIE • 2008

Thirst
MOVIE • 2009

A Bittersweet Life
MOVIE • 2005

Dream
TV • 2009

Salamander Guru and The Shadows
TV • 2012

Miracle in Cell No. 7
MOVIE • 2013

I, the Executioner
MOVIE • 2024

The Pirates
MOVIE • 2014