Oh Man-seok
Oh Man-seok (오만석) is a South Korean actor. He is best known as Lee Dong-joon in The Art of Negotiation (2025) and as Um Sun-gu in The Atypical Family (2024).
Beyond the screen.
Oh Man-seok (오만석) is a South Korean actor. He is best known as Lee Dong-joon in The Art of Negotiation (2025), a business drama. He works mainly in television dramas. His television work on Oxfea spans 2018 to 2025.
Early life
Oh Man-seok was born on July 9, 1965 in South Korea. He is 61 years old.
Career and breakthrough
In 2018, he played Yun Sang-gi in Something in the Rain, a romance drama. In 2024, he played Um Sun-gu in The Atypical Family, a fantasy and romance drama. In 2025, he played Lee Dong-joon in The Art of Negotiation, a business drama. In total, he has 3 drama credits listed on Oxfea. His roles span romance, fantasy and business dramas. He has also performed on stage, including in the musical The Days.
A career, chapter by chapter.
Selected drama roles
- Something in the Rain — Yun Sang-gi
- The Atypical Family — Um Sun-gu
- The Art of Negotiation — Lee Dong-joon
Explore the drama guides
Choose a title for its story, cast and release details.
- Something in the Rain — Romance · Drama
- The Atypical Family — Fantasy · Romance · Drama
- The Art of Negotiation — Drama · Business
Stories to find them in.
Selected credits in the Oxfea collection.
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