Oh Dal Su – Biography, Age, Korean Dramas & Movies

AUTHOR: | March 13, 2026 | 7 min. read


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

🔽 View Complete Acting, Movies & Variety Credits
🔴 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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