Jeon Jong-seo, also known as Rachel Jun, has swiftly established herself as one of South Korea's most compelling and versatile actresses following a startling debut that captivated international audiences. Born on July 5, 1994, she made an unforgettable entrance into the film world with a leading role in the critically acclaimed psychological thriller Burning (2018), directed by Lee Chang-dong and based on a short story by Haruki Murakami. Her portrayal of the enigmatic and free-spirited Haemi, a young woman who mysteriously disappears, earned her widespread praise for her raw, emotionally complex performance, instantly marking her as a talent to watch. The film premiered at the Cannes Film Festival and garnered significant global attention, setting the stage for her rapid rise in the industry.

Following her striking debut, Jeon Jong-seo took on a darker and more challenging role in the 2020 thriller The Call, a tense time-bending horror film for which she won the prestigious Baeksang Arts Award for Best Actress. In the film, she played Oh Young-sook, a dangerous and manipulative woman from the past who communicates with a present-day woman through a mysterious phone connection. Her chilling, transformative performance demonstrated her remarkable range and intensity, cementing her status as a leading actress in Korean cinema. The award was a significant milestone, recognizing her ability to carry a film with a deeply unsettling and demanding character.

Jeon then expanded her international footprint by starring in the English-language feature Mona Lisa and the Blood Moon (2021), directed by Ana Lily Amirpour. In the film, she played the role of Bonnie, a single mother and stripper in New Orleans who befriends a woman with supernatural powers. This project showcased her willingness to take on diverse roles across different languages and cultural contexts, further broadening her appeal. She demonstrated a natural command of English and a strong screen presence alongside a predominantly Western cast.

In 2022, Jeon reached an even wider global audience with her starring role in the Netflix series Money Heist: Korea – Joint Economic Area, the Korean adaptation of the hit Spanish series. She played Tokyo, the volatile and passionate young robber who becomes a key member of the heist crew. Her performance brought a fierce, unpredictable energy to the character, helping the series become one of Netflix's most-watched non-English language shows. The role solidified her as a household name in Korea and introduced her to millions of viewers worldwide. Through a series of bold, carefully chosen projects, Jeon Jong-seo has proven herself to be a fearless and dedicated performer, consistently seeking out challenging roles that defy easy categorization. Her career trajectory from a breakout indie film sensation to an award-winning star of international blockbuster series marks her as a defining actress of her generation in South Korea.