Lee You-mi

Lee You-mi is a South Korean actress who worked for more than ten years before the world discovered her. Then Squid Game and All of Us Are Dead arrived almost together, and she became a global star. She is now one of the leading actresses of her generation in Korea.

Lee You-mi is 162 cm (5 ft 4 in) tall and weighs 42 kg, according to her published profile.

Early life

Lee You-mi was born on July 18, 1994, in Jeonju, North Jeolla Province, South Korea. She began acting as a teenager, with a small role in the film The Yellow Sea in 2010. Through her teens and twenties, she played many small roles in films and dramas, waiting patiently for her chance.

Career and breakthrough

Her breakthrough came in Squid Game (2021). As Ji-yeong, Player 240, her marble game scene with Kang Sae-byeok became one of the most loved and saddest scenes of the whole series, and the cast won major international awards. The film Young Adult Matters (2021) also won her Best New Actress at the Baeksang Arts Awards.

Popular roles

In All of Us Are Dead (2022), Lee You-mi plays Lee Na-yeon, a selfish rich student whom viewers loved to hate — proof of her acting power. In Strong Girl Nam-soon (2023), she took the lead role of Gang Nam-soon, a super-strong young woman searching for her family. In Welcome to Waikiki (2018), she appeared as Ji-young in an early guest role that fans still enjoy finding.

Recent work and why fans love her

Lee You-mi led the Netflix romance Mr. Plankton (2024) as Jo Jae-mi and the thriller As You Stood By (2025). Fans love her because she can play anyone — a dying girl, a villain, a superhero or a bride. Lee You-mi's long, patient road to fame makes her success story one that fans love to cheer for.