Kim You-jung
Acting
Born: September 22, 1999 (age 27) · Seoul, South Korea
Highest Rated
Biography
Kim You-jung (김유정) is a South Korean actress, born in Seoul, who studied at Goyang High School of Arts. She started out as a model for a confectionery brand at the age of 4 and made her acting debut in 2003, quickly becoming one of the most famous and in-demand child actresses in Korea. She was discovered at 5 years old in a contest that her older sister joined and won the Most Popular Award even though she was not one of the official contestants. She is the youngest of three siblings; her older sister, Kim Yeon-jung, is also an actress. Known as "Nation's Little Sister" during her child acting years, she earned the moniker "Sageuk Fairy" after starring in acclaimed historical period dramas such as Dong Yi (2010), Moon Embracing the Sun (2012), and May Queen (2012). In 2016, she successfully transitioned to adult leading roles in the hit period romance Love in the Moonlight. In 2017, she ranked 8th on the Forbes Korea Power Celebrity list, becoming the youngest person ever to enter the Top 10 at 17 years old. In February 2018, she temporarily paused her career after being diagnosed with thyroid dysfunction. She solidified her status as an international star with leading roles in the romantic comedies Backstreet Rookie (2020), Lovers of the Red Sky (2021), and My Demon (2023–2024). Her performance in the popular Netflix retro drama 20th Century Girl (2022) earned her the title "Nation's First Love". Her projects include the Netflix comedy Chicken Nugget (2024), the psychological thriller series Dear X (2025), and the 1930s historical spy romance 100 Days of Lies (2026).
Known for
Lady Vengeance
2005
The Chaser
2008
20th Century Girl
2022
My Demon
2023
Tidal Wave
2009
The Moon Embracing the Sun
2012
The 8th Night
2021
Backstreet Rookie
2020
Commitment
2013
Angry Mom
2015
Dear X
2025
Love in the Moonlight
2016
Photos (14)
Movies (26)
The Chaser
Eun-ji
20th Century Girl
Na Bo-ra
Reawakened Man
Blue
Lady Vengeance
Jae-kyung
Thread of Lies
Kim Hwa-yeon
The 8th Night
Ae-ran
Tidal Wave
Ji-min
Commitment
Ri Hye-in
All for Love
Kim Jin-a
My Heart Puppy
Ah-min
Golden Slumber
Soo-ah
Hwang Jin Yi
Young Jin-yi
Dark, Deadly & Dreadful
Wei (Room 731)
Circle of Atonement
Lee Jung-Hyun
Because I Love You
Scully
Paradise
Hwa-ran
Rainbow Eyes
Hye-seo's Daughter
Bank Attack
Bae Yeon-Hee
Lump of Sugar
Young Si-eun
4 Horror Tales: Hidden Floor
Yeo Joo-hee
DMZ (Demilitarized Zone)
2004
Possessed
Ji-eun
On the Pitch
Radio female soldier
Room 731
Wei
Do You See Seoul?
Yeong-mi
The Dirge Singer
Yun Shim
TV Shows (32)
Running Man
2 eps
2 Days and 1 Night
3 eps
100 Days of Deception
Lee Ga-gyeong · 16 eps
KBS Drama Special
Yeon-Sim · 1 eps
My Demon
Do Do-hee · 16 eps
Dear X
Baek Ah-jin · 12 eps
Backstreet Rookie
Jung Saet-Byul · 16 eps
Love in the Moonlight
Hong Ra-on / Hong Sam-nom · 18 eps
Jewel in the Crown
Dong Yi (young) · 60 eps
Lovers of the Red Sky
Hong Chun-gi · 16 eps
Clean with Passion for Now
Gil O-Sol · 16 eps
Young Actors' Retreat
8 eps
Golden Rainbow
Kim Baek-won (teenage) · 41 eps
Chicken Nugget
Choi Min-ah · 10 eps
Secret Door
Seo Ji-dam · 24 eps
Moon Embracing the Sun
Heo Yeon-woo (young) · 20 eps
Angry Mom
Oh Ah Ran · 16 eps
One Ordinary Day
holding cell girl · 1 eps
Cain and Abel
young Seo-yeon · 20 eps
Iljimae
Eun Chae (young) · 20 eps
SBS Drama Awards
Host · 5 eps
May Queen
Chun Hae-joo (young) · 38 eps
Grudge: The Revolt of Gumiho
Yeon-Yi · 16 eps
Painter of the Wind
Yun-bok (young) · 20 eps
Road No. 1
young Soo-yeon · 20 eps
Powerful Opponents
Yoo Gwan-Nim · 16 eps
Melon Music Awards
Messenger · 1 eps
Love Cells
Ne-bi · 23 eps
Tamra, the Island
Jang Beo-Sul · 16 eps
막이래쇼: 무작정탐험대
1 eps
7인의 식객
13 eps
100일의 거짓말: 비밀문서
1 eps
Self / Appearances (8)
Men on a Mission
Self · 1 eps
Infinite Challenge
Self · 1 eps
Amazing Saturday
Self · 1 eps
The Seasons
Self · 1 eps
House on Wheels
Self · 1 eps
Office Workers
Self · 1 eps
Love in the Moonlight: Redrawn
Self · 2 eps
Kim Yoo-jung’s Half Holiday in Italy
Herself · 8 eps