Gong Do-yu

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, the loyal and cheerful fighter in the school action hit Study Group (2025). With his tall build and bright smile, he brings both power and warmth to the screen.

Gong Do-yu is 183 cm (6 ft 0 in) tall.

Early life

Gong Do-yu was born on January 20, 1994, in South Korea. He worked as a model before turning to acting, and his athletic build comes from a love of sport and action training. He made his acting debut in 2023 and spent his first years learning through auditions and small steps toward bigger roles.

Career and breakthrough

Gong Do-yu's breakthrough arrived with Study Group (2025), the TVING drama based on the popular webtoon. In the story, a student who wants only to study forms a group at a rough school, and fights break out around them. As Lee Jun, Gong Do-yu became a core member of the group, and the drama's mix of comedy, friendship and hard action made it a word-of-mouth hit in Korea and overseas.

Popular roles

As Lee Jun, Gong Do-yu is funny, brave and deeply loyal to his friends, and his energetic fight scenes became a highlight of Study Group. He also appeared on the big screen in the film Winter in Sokcho (2025), playing Joon-oh in a quiet story set in a snowy seaside town, which showed his softer dramatic side.

Recent work and why fans love him

Gong Do-yu is set to return with the Study Group team for a second season. Fans love his natural charm, his hard work in action scenes and the happy energy he brings to interviews and social media. He is a new name that many viewers now watch with real excitement.