Seo Yi-sook

Seo Yi-sook (서이숙) is a South Korean actress born on January 15, 1968, in Yeoncheon, Gyeonggi, South Korea. She is best known as Queen Dowager Inju in Bon Appetit, Your Majesty (2025) and as God Mago in Hotel del Luna (2019).

Early life

Seo Yi-sook was born on January 15, 1968, in Yeoncheon, in Gyeonggi Province, South Korea. She built her career on the stage and on screen, and she is known for strong supporting roles in popular dramas. She has also taught acting at Chung-Ang University.

Career and breakthrough

Seo Yi-sook played God Mago in the fantasy romance Hotel del Luna (2019). She then played Yoon Seon-hak in Start-Up (2020), Park Sung-ae in The Good Bad Mother (2023), and Oh Nan-kyeong in Knight Flower (2024). In 2025 she played Queen Dowager Inju in Bon Appetit, Your Majesty. Her work in Hotel del Luna and Start-Up brought her to a wide audience, and her later roles in The Good Bad Mother, Knight Flower, and Bon Appetit, Your Majesty kept her in demand. Across these roles she has become a familiar face in hit Korean dramas, often playing firm and memorable older women.