Roh Yoon-seo

Roh Yoon-seo is a South Korean actress and model born on January 25, 2000. She is best known for her prominent roles in television and film, including the series Our Blues and Crash Course in Romance, as well as the feature films 20th Century Girl and Hear Me: Our Summer. Following the success of Hear Me: Our Summer, she earned the monicker "Nation's First Love."

Roh pursued her early education at Jamjeon Elementary School, Jungshin Girls' Middle School, and Sunhwa Arts School. She subsequently attended Ewha Womans University, where she majored in Fine Arts and graduated in 2023.

Roh began her career in the entertainment industry in 2018 as a model for cosmetic product advertisements, including work for Allure Korea. She made her formal acting debut in 2022 when she was cast in the tvN drama Our Blues. In the series, she played Bang Yeong-ju, a pregnant high school student. Despite controversy surrounding the subplot of teenage pregnancy, Roh gained audience attention and positive recognition for her portrayal of the character's emotional struggles, demonstrating stable acting skills for a newcomer.

Later in 2022, Roh starred in the Netflix feature film 20th Century Girl. Within three days of release, the film reached No. 2 on Netflix's global chart for non-English language films during its first week, accumulating eight million hours viewed alongside positive plot reception.

In 2023, Roh starred in the tvN television series Crash Course in Romance. Her performance earned her the Best New Actress award at the 59th Baeksang Arts Awards. Her work in Crash Course in Romance and Hear Me: Our Summer collectively earned her multiple Best New Actress accolades.

In addition to her career, Roh has engaged in philanthropic efforts. In July 2023, she contributed a 10 million won donation to the 2023 Ice Bucket Challenge. Later in March 2025, she donated 10 million won through the Hope Bridge National Disaster Relief Association to assist recovery efforts following wildfires in the Ulsan, Gyeongbuk, and Gyeongnam regions.