OS
Oh Se-young
ActorBorn July 21, 1996 (29 years)
Oh Se-young is a South Korean actress. She is known for her roles in dramas such as Thirty-Nine, Alice, The Beauty Inside and VIP. She also appeared in movies such as The Nightmare, Hundred Years Later, There's No One, Diary and The Day I Died: Unclosed Case.
In 2018, she debuted in the JTBC drama "Beauty Inside" as Joo Ga-young, a high school student living a troubled life who receives help from the protagonist, Han Se-gye. Her brief but powerful role left a lasting impression on viewers.[3] She continued her acting career until 2023, when she starred in the MBC daily drama "Third Marriage," earning acclaim for her performance, which was unusual for a rookie. Despite playing a villainous role, she successfully established herself as an actress by transitioning from emotional to comedic performances, portraying a complex character. Thanks to her acting references, she won the Excellence Award in the Daily/Short Acting Category at the MBC Drama Awards that year.
Ahead of the end of "Third Marriage" around May 2024, she appeared as Kim Tae-sung's ex-girlfriend in the drama "Seonjae and Run Away," which began airing in April 2024. At the time, she impressed viewers with her authentic fashion style, reflecting the school bullies. The drama itself enjoyed nationwide popularity, allowing her to gain recognition not only among daily drama viewers but also among younger viewers.
In 2026, she starred as Yoo Se-hee in the drama "Judge Lee Han-young." The drama achieved viewership ratings approaching 15%, and her portrayal of Yoo Se-hee, a woman who harbors a crush on the main character, Lee Han-young, but who cannot defy her father and inevitably puts him in danger, further boosted her profile along with the drama's success.
In 2018, she debuted in the JTBC drama "Beauty Inside" as Joo Ga-young, a high school student living a troubled life who receives help from the protagonist, Han Se-gye. Her brief but powerful role left a lasting impression on viewers.[3] She continued her acting career until 2023, when she starred in the MBC daily drama "Third Marriage," earning acclaim for her performance, which was unusual for a rookie. Despite playing a villainous role, she successfully established herself as an actress by transitioning from emotional to comedic performances, portraying a complex character. Thanks to her acting references, she won the Excellence Award in the Daily/Short Acting Category at the MBC Drama Awards that year.
Ahead of the end of "Third Marriage" around May 2024, she appeared as Kim Tae-sung's ex-girlfriend in the drama "Seonjae and Run Away," which began airing in April 2024. At the time, she impressed viewers with her authentic fashion style, reflecting the school bullies. The drama itself enjoyed nationwide popularity, allowing her to gain recognition not only among daily drama viewers but also among younger viewers.
In 2026, she starred as Yoo Se-hee in the drama "Judge Lee Han-young." The drama achieved viewership ratings approaching 15%, and her portrayal of Yoo Se-hee, a woman who harbors a crush on the main character, Lee Han-young, but who cannot defy her father and inevitably puts him in danger, further boosted her profile along with the drama's success.
Filmography
| 2026 | The Judge Returns (TV Series) · as Yoo Se-Hee |
| 2025 | Low Life (2025) (TV Series) · as Hostess |
| 2024 | Lovely Runner (TV Series) · as Choi Ga-Hyeon |
| 2023 | The Third Marriage (TV Series) · as Kang Se-Ran |
| 2022 | Blind (2022) (TV Series) · as Baek Ji-Eun |
| 2022 | Thirty-Nine (TV Series) · as Jo Hye-Jin |
| 2020 | The Day I Died: Unclosed Case · as Bakery Staff #1 |
| 2019 | VIP (TV Series) · as Han So Mi |
| 2019 | Cat's Bar (TV Series) · as Park Ha-Na |
| 2018 | Your Imagination Becomes Reality (TV Series) · as So Ram |
| 2018 | The Beauty Inside (2018) (TV Series) · as Joo Ga-Young |