Byun Yoon-Jeong

Byun Yoon-Jeong (Korean: 변윤정) is a South Korean television and film actress born in 1974. She has built a prominent career appearing in numerous high-profile South Korean television series and streaming dramas, frequently taking on supporting roles as maternal figures or supporting characters across major networks and platforms.

Acting Career and Notable Television Roles

Byun has maintained an active presence in the South Korean television industry, appearing in prominent productions spanning multiple networks including KBS2, tvN, SBS, JTBC, and streaming platforms such as Netflix. Her television credit portfolio includes notable performances in both recurring and guest-starring capacities.

Among her television appearances are roles in Doctor John (SBS, 2019), The Lies Within (OCN, 2019), The World of the Married (JTBC, 2020), and the MBC science fiction television cinema project SF8: Joan's Galaxy (2020) where she portrayed a professor.

During the 2021 and 2022 broadcasting seasons, Byun appeared in series such as Mouse (tvN, 2021), Let Me Be Your Knight (SBS, 2021), Twenty Five Twenty One (tvN, 2022), Shting Stars (tvN, 2022), Cheer Up (SBS, 2022), and Cheer Up. She also gained notable recognition for her portrayal of Rio's mother in the Netflix crime thriller series Money Heist: Korea - Joint Economic Area (2022).

Her work continued into subsequent years with roles in My Lovely Boxer (KBS2, 2023), Strong Girl Nam-Soon (JTBC, 2023), Nothing Uncovered (KBS2, 2024), and the weekend family drama series Iron Family (KBS2, 2024) in which she played the character Bok Mi-Kyeong. Her later credits include appearances in the 2025 series Karma (Netflix) and Taxi Driver 3 (SBS), as well as the 2026 Netflix series Teach You a Lesson.

Filmography Summary

Teach You a Lesson (Netflix / 2026) - Kim Hyeong-Ju's mom
Taxi Driver 3 (SBS / 2025) - Oh Man-Soo's wife
Karma (Netflix / 2025) - clinic patient
Iron Family (KBS2 / 2024) - Bok Mi-Kyeong
Nothing Uncovered (KBS2 / 2024) - Kong Joon-Ho's sister
Strong Girl Nam-Soon (JTBC / 2023) - antidote buyer
My Lovely Boxer (KBS2 / 2023) - Lee Kwon-Sook's mom
Money Heist: Korea - Joint Economic Area (Netflix / 2022) - Rio's mother
Twenty Five Twenty One (tvN / 2022) - Moon Ji-Woong's mother
Mouse (tvN / 2021) - Mrs. Oh
The World of the Married (JTBC / 2020) - supporting role
Doctor John (SBS / 2019) - supporting role