Gong Do-yu
Gong Do-yu (공도유) is a South Korean actor and model who broke out as Lee Jun in the hit school action drama Study Group. He is 183 cm tall and works with Ringcomz.

Beyond the screen.
Gong Do-yu is a South Korean actor and model, and one of the freshest breakout faces of recent K-drama. He won wide attention as Lee Jun in the school action hit Study Group (2025).
He is 183 cm tall. His agency is Ringcomz.
Early life
Born on January 20, 1994, in South Korea, he worked as a model before turning to acting. He made his acting debut in 2023.
Career and breakthrough
His breakthrough arrived with Study Group (2025), the TVING drama based on the popular webtoon. As Lee Jun, he became a core member of the group.
Popular roles
As Lee Jun, he is funny, brave and loyal to his friends, and his fight scenes became a highlight.
Recent work and why fans love him
He is set to return with the Study Group team for a second season.
A career, chapter by chapter.
Selected drama roles
- Study Group — Lee Jun
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Stories to find them in.
Selected credits in the Oxfea collection.
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