Oh Dal Su – Biography, Age, Korean Dramas & Movies
South Korean Character Actor Renowned for Memorable Supporting Roles in Park Chan-wook Films
Oh Dal-su stands out as a compelling character actor with a career spanning more than three decades, recognized for his nuanced supporting roles in both film and theater. His collaborations with acclaimed director Park Chan-wook and performances in popular Korean cinema have made him a respected figure in the industry.
🧔 Who Is Oh Dal-su?
Oh Dal-su is a South Korean actor celebrated for his extensive work in film, television, and stage. With over 70 credits since his career began in the early 1990s, he is best known for his supporting roles in several of Park Chan-wook’s films, including iconic titles such as Oldboy and Lady Vengeance. His performances have earned him critical acclaim and a solid reputation as a reliable and versatile character actor.
Beyond his collaborations with Park Chan-wook, Oh has appeared in a wide range of successful Korean films, often portraying complex and memorable characters that contribute depth and nuance to the stories. His role in Ode to My Father garnered him major awards, underscoring his significance in contemporary Korean cinema.
📋 Quick Profile
- Full Name: Oh Dal-su
- Hangul: 오달수
- Birth Date: 1968-06-15
- Age: 58 years 1 month 22 days
- Nationality: South Korea
- Zodiac Sign: Gemini
🌱 Early Life & Background
Born on June 15, 1968, in Seongdang-dong, Dalseo-gu, Daegu, South Korea, Oh Dal-su grew up in a city known for its cultural vibrancy. Details about his early family life are limited, but his upbringing in Daegu provided a foundation for his later artistic pursuits.
🎓 Education & Training
Oh Dal-su attended Dong-eui University, where he earned a Bachelor of Arts degree. His formal education contributed to his development as an actor, equipping him with foundational skills that he would later refine through extensive stage work and film roles.
🎤 Career Beginnings
Oh Dal-su began his acting career in theater in Busan, gaining experience and honing his craft through local stage productions. By 2001, he became the head of the theater company Singiru Manhwagyeong, which translates to “Mirage and Kaleidoscope,” reflecting his dedication to the theatrical arts and leadership within the acting community.
Transitioning to film, Oh’s rich stage experience made him an in-demand character actor. Early notable film roles included appearances in Oldboy and If You Were Me, where his distinctive presence and ability to embody diverse characters quickly established him as a reliable supporting actor in Korean cinema.
🔥 Notable Works & Iconic Roles

Squid Game (2021)

Boss (2025)

No Other Choice (2025)
🎭 Acting Style & Public Image
Oh Dal-su is distinguished by his ability to bring a layered authenticity to supporting roles, often portraying characters with a mix of humor, complexity, and emotional depth. His performances frequently provide critical narrative support and memorable moments, making him a standout presence even in ensemble casts.
Publicly, Oh is seen as a seasoned character actor whose versatility allows him to adapt to a wide range of genres and roles. While his collaborations with Park Chan-wook have brought him considerable recognition, his broader filmography reflects a commitment to diverse storytelling and character exploration, earning him respect among peers and audiences alike.
🎞️ Drama & Movie List (Key Roles)
| Year | Title | Role | Type |
|---|---|---|---|
| 2025 | Boss | In-sool | Movie |
| 2025 | No Other Choice | Detective #1 | Movie |
| 2025 | The People Upstairs | Man next door | Movie |
| 2024 | 4PM | Jung-in | Movie |
| 2024 | I, the Executioner | Oh Jae-pyeong | Movie |
| 2023 | Woongnami | Na Bok-cheon | Movie |
| 2023 | The Wild | Gak-su | Movie |
| 2022 | I Want to Know Your Parents | Do Ji-yeol | Movie |
| 2021 | The Blacklist | Sin | Movie |
| 2021 | Squid Game | Captain Park | TV Drama |
🔴 Click here to expand full filmography
| Year | Title | Role | Type |
|---|---|---|---|
| 2026 | The King’s Warden | – | Variety Show |
| 2020 | Best Friend | Eui-sik | Movie |
| 2018 | Detective K: Secret of the Living Dead | Han Seo-pil | Movie |
| 2017 | Memoir of a Murderer | Byung-man | Movie |
| 2017 | Along with the Gods: The Two Worlds | Prosecutor | Movie |
| 2017 | 1987: When the Day Comes | Journalist (cameo) (uncredited) | Movie |
| 2016 | Old Days | Self | Variety Show |
| 2016 | The Great Actor | Jang Seong-pil | Movie |
| 2016 | Tunnel | Dae-kyung | Movie |
| 2016 | Run-Off | Kang Dae-woong | Movie |
| 2016 | Master | Hwang Myung-joon | Movie |
| 2015 | Detective K: Secret of the Lost Island | Han Seo-pil | Movie |
| 2015 | Assassination | Pomade | Movie |
| 2015 | Veteran | Oh Jae-pyeong | Movie |
| 2015 | You Call It Passion | Director Ko | Movie |
| 2014 | The Pirates | Han Sang-jil | Movie |
| 2014 | Slow Video | Byeong-soo | Movie |
| 2014 | Ode to My Father | Dal-goo | Movie |
| 2013 | The Attorney | Park Dong-ho | Movie |
| 2013 | Miracle in Cell No. 7 | So Yang-ho | Movie |
| 2013 | My Paparotti | Principle Deok-saeng | Movie |
| 2012 | Code Name: Jackal | Chief Detective Ma | Movie |
| 2012 | The Thieves | Andrew | Movie |
| 2012 | Soar Into the Sun | Master Sergeant Min Dong-phil | Movie |
| 2012 | The Ugly Duckling | Nak-man’s Father | Movie |
| 2012 | Mai Ratima | – | Variety Show |
| 2012 | Salamander Guru and The Shadows | Sun-dal | TV Drama |
| 2011 | Detective K: Secret of Virtuous Widow | Han Seo-pil | Movie |
| 2011 | Late Blossom | Dal-su | Movie |
| 2011 | Head | Professor Kim Sang-chul / Professor Oh Byung-seok | Movie |
| 2010 | Troubleshooter | Choi Sang-cheol | Movie |
| 2010 | The Servant | Old Man Ma | Movie |
| 2010 | Foxy Festival | Gwang-rok | Movie |
| 2009 | Thirst | Yeong-doo | Movie |
| 2009 | Don’t Step Out of the House | Father (voice) | Movie |
| 2009 | Private Eye | Oh Yeong-dal | Movie |
| 2009 | Money Show | Factory President | Movie |
| 2009 | Dream | Lee Young-chul | TV Drama |
| 2008 | The Good, the Bad, the Weird | Mr. Park | Movie |
| 2008 | A Tale of Legendary Libido | Gang-mok | Movie |
| 2007 | Project Makeover | Jung-ju’s Father | Movie |
| 2007 | The Show Must Go On | Hyun-soo | Movie |
| 2007 | Driving with My Wife’s Lover | Taxi Driver | Movie |
| 2006 | I’m a Cyborg, But That’s OK | Shin Duk-cheon | Movie |
| 2006 | Bar Legend | Na Sang-Choon | Movie |
| 2006 | A Bloody Aria | Oh Ge-un | Movie |
| 2006 | Once in a Summer | Nam Gyun-soo | Movie |
| 2006 | The Host | The Monster (voice) | Movie |
| 2006 | Forbidden Quest | Hwang | Movie |
| 2006 | Between Love and Hate | Hak-Yi | Movie |
| 2005 | Lady Vengeance | Mr. Chang | Movie |
| 2005 | A Bittersweet Life | Myeong-goo | Movie |
| 2005 | Crying Fist | Yong-dae | Movie |
| 2004 | Woman Is the Future of Man | Glutinous Rice Cake Seller | Movie |
| 2004 | The President’s Barber | Mr. Ahn | Movie |
| 2004 | Autobiography of Oldboy | – | Variety Show |
| 2003 | Oldboy | Park Cheol-woong | Movie |
| 2003 | If You Were Me | Police Station Chief (seg. 6) | Movie |
| 2003 | Never Ending Peace and Love | Police Box (Chief) | Movie |
| 2002 | Bet On My Disco | – | Variety Show |
🎖️ Awards & Achievements
Throughout his career, Oh Dal-su has received numerous awards and nominations recognizing his skill in supporting roles. He won Best Supporting Actor at the 6th Busan Film Critics Awards for Mapado and earned multiple accolades for his work in Miracle in Cell No. 7, including the Top Excellence Award at the Korean Culture and Entertainment Awards and Best Supporting Actor at the Golden Cinema Festival.
His performance in Ode to My Father brought him several major honors, including the Grand Bell Award and Blue Dragon Film Award for Best Supporting Actor in 2015. Oh has also been recognized for roles in Veteran and Assassination, underscoring his sustained excellence and contribution to Korean film.
💞 Personal Life
Oh Dal-su’s personal life has remained relatively private, with limited publicly available information. Notably, he was arrested and detained briefly in 1987 for participating in protests during the June Democratic Struggle, reflecting a period of political activism in his youth.
In 2018, Oh faced allegations of sexual harassment, which led to a hiatus from acting and withdrawal from certain projects. He was later cleared of sexual assault charges in 2019, and he has since returned to his professional activities.
🆕 Recent & Upcoming Projects
Oh Dal-su returned to prominent screen roles in 2024 by portraying boat captain Park Yeong Gil in the second and third seasons of the globally successful series Squid Game. This marked a significant comeback after a two-year hiatus.
Looking ahead, he is slated to appear in films such as No Other Choice (2025) and Boss (2025), continuing his long-standing presence in the Korean film industry with diverse roles that showcase his enduring versatility.
❓ Fun Facts
- Longtime Theater Leader
Since 2001, Oh Dal-su has led the theater company Singiru Manhwagyeong, emphasizing his deep roots in stage acting.
- Multiple Park Chan-wook Collaborations
He has appeared in six films directed by Park Chan-wook, including the cult classic Oldboy.
- Voice of The Host’s Monster
Oh provided the voice for the monster in the 2006 blockbuster The Host.
- Political Activism
In 1987, he was detained for three days due to participation in the June Democratic Struggle protests.
- Award-Winning Supporting Actor
Oh has won over 25 awards, including major honors for his roles in Ode to My Father and Miracle in Cell No. 7.
🛟 Legacy & Why Fans Love Oh Dal-su
Oh Dal-su is remembered for his remarkable talent in elevating supporting roles into unforgettable characters that resonate with audiences. His ability to infuse humor, sincerity, and complexity into every performance has endeared him to fans and critics alike, making him a cherished figure in contemporary Korean cinema.
His collaborations with renowned directors and consistent presence in critically acclaimed films have solidified his legacy as one of South Korea’s most respected character actors. Fans appreciate his dedication to craft and his unique capacity to bring authenticity to a wide range of roles, ensuring his work remains influential and appreciated.
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