Ok Ja-yeon (Ok Ja-yeon), born on December 19, 1988, in Suncheon, is a South Korean actress known for her roles in The Uncanny Counter, Mine, Big Mouth and Under the Queen's Umbrella.
Raised by two parents who were teachers, she studied aesthetics at Seoul National University, initially planning to pursue a career in law. Her passion for theater began after she attended a performance of Snow in March. She then decided to become an actress and made her stage debut in 2012 in Guest.
She continues her theater career with Romeo and Juliet, Hamlet Avatar and Blackbird, while landing small roles in films, notably in The Age of Shadows (2016), Burning (2018) and Ashfall (2019).
On television, she appears in Two Cops (2017), Wok of Love (2018) and Different Dreams (2019). In 2020, she distinguished herself in The Uncanny Counter (Between Noodles and Demons), in which she plays Baek Hyang-hee, a woman possessed by an evil spirit.
His career took a decisive turn in 2021 with Mine, in which she plays Kang Ja-kyung, also known as Lee Hye-jin. This role earned her a nomination for the Baeksang Arts Awards.
In 2022, she played Hyun Ju-hee in Big Mouth and Royal Concubine Hwang in Under the Queen's Umbrella. She also won the Best Actress Award at the Jeonju International Film Festival for The Archaeology of Love.
She continues by saying Queenmaker and Gyeongseong Creature (2023), then Gangnam B-Side and the movie Mission: Cross (2024).
In 2025, she appears in Nine Puzzles, Oh My Ghost Customers and The Old Woman with the Knife. She also returns to the theater in The Effect.
Visit 2026, she plays Michelle in I'm done with you, Jin Hae-ju in The Ordinary Jackpot and a detective in The Perfect Lie.
Visit 2027, it is announced in The Long Shot Trial and The Koreans, a South Korean adaptation of the American series The Americans, alongside Lee Byung-hun and Han Ji-min.

