Few actresses in contemporary South Korean entertainment capture the raw vulnerability, emotional intensity, and explosive global impact of Lee Yoo-mi. From spending a decade cutting her teeth in indie cinema and supporting television roles to anchoring two of the biggest streaming hits in television history back-to-back, Lee has forged an extraordinary path to international superstardom.
Early Life, Jeonju Roots, and Early Acting Ambitions
Born **Lee Yoo-mi** on July 18, 1994, in Jeonju, South Jeolla Province, South Korea, she grew up with a deep-seated passion for acting and storytelling. Recognizing her calling at a young age, she began her journey in the entertainment industry as a child commercial model and young actress during her mid-teens.
Navigating the competitive world of South Korean entertainment without immediate agency backing, Lee spent years building a reputation as a fiercely dedicated workhorse, taking on dozens of minor parts in independent films, short movies, and broadcast dramas to hone her craft.
Biodata Profile
| Attribute | Detail |
|---|---|
| Full Name | Lee Yoo-mi (이유미) |
| Date of Birth | July 18, 1994 |
| Place of Birth | Jeonju, South Korea |
| Nationality | South Korean |
| Occupation | Actress |
| Years Active | 2009–Present |
| Notable Accolades | Primetime Emmy Award, Baeksang Arts Award for Best New Actress, Blue Dragon Film Award for Best New Actress, Jeonju International Film Festival Recognition |
| Signature Roles | Ji-yeong / Player 240 (Squid Game), Lee Na-yeon (All of Us Are Dead), Gang Nam-soon (Strong Girl Nam-soon), Jin Ha-young (Mental Coach Jegal), Se-young (Young Adult Matters) |
Indie Film Acclaim: Young Adult Matters
Before achieving global household recognition, Lee established herself as a powerhouse in independent cinema. Her major turning point came in 2021 when she starred as a troubled runaway teenager in the gritty, critically acclaimed indie film ***Young Adult Matters***.
Her raw, fearless, and deeply authentic performance earned her widespread critical acclaim, culminating in the prestigious **Best New Actress award at the 30th Buil Film Awards** and the Korean Association of Film Critics Awards, cementing her reputation as a formidable dramatic actress.
Global Phenomenon: Ji-yeong (Player 240) in Squid Game
Lee's life changed overnight in September 2021 when she was cast as **Ji-yeong (Player 240)**—the cynical yet deeply compassionate young woman who forms an unforgettable bond with Kang Sae-byeok during the Marbles game—in Netflix’s historic cultural phenomenon ***Squid Game***.
Despite appearing in only a handful of episodes, Lee delivered one of the most devastating and emotionally resonant performances in television history, capturing the hearts of millions worldwide. Her stellar work earned her a historic **Primetime Emmy Award for Outstanding Guest Actress in a Drama Series**, making her the first Korean actress ever to win the category.
Back-to-Back Stardom: All of Us Are Dead and Strong Girl Nam-soon
Capitalizing on her global momentum, Lee immediately secured another iconic role, starring as the fiercely selfish and polarizing high school student Lee Na-yeon in the record-shattering Netflix zombie thriller ***All of Us Are Dead*** (2022). Her ability to play both deeply sympathetic heroines and intensely hated villains proved her incredible range.
Demonstrating her ability to anchor mainstream television as a charismatic leading lady, she went on to star in the sports drama *Mental Coach Jegal* (2022) and headlined the superhero comedy mega-hit ***Strong Girl Nam-soon*** (2023) as the titular, superhuman heroine.
Personal Life and Grounded Legacy
Away from international film sets, Emmy awards stages, and red-carpet premieres, Lee Yoo-mi maintains a remarkably cheerful, down-to-earth personality. Known for her infectious laughter, close friendships with co-stars like Jung Ho-yeon, and deep humility, she approaches every project with the same hunger she had during her indie film days.
Admired by directors, co-stars, and millions of fans across the globe for her peerless emotional depth, fearlessness, and magnetic screen presence, Lee Yoo-mi stands tall as a true icon of modern global entertainment.
What is your favorite Lee Yoo-mi performance? Do you love her best sharing that heartbreaking marble game as Player 240 in Squid Game, fighting zombies in All of Us Are Dead, or showing her superpowers in Strong Girl Nam-soon? Drop a comment below!

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