Kim You-jung
- Known for
- Acting
- Born
- September 22, 1999 (age 27)
- Birthplace
- Seoul, South Korea
Biography
Kim You-jung is a South Korean actress. 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. 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 Deception (2026).
Known For
Photos
Filmography
Soulbound
Movie · as Yun-ha
Reawakened Man
Movie · as Blue
100 Days of Deception
TV · as Lee Ga-kyung / Keum Seo-hee · 16 eps
Love in the Moonlight: Redrawn
TV · as Self · 2 eps
100 Days of Deception: Secret Document
TV · as Self · 1 ep
Dear X
TV · as Baek Ah-jin · 12 eps
The White Collars
TV · as Self · 1 ep
Chicken Nugget
TV · as Choi Min-ah · 10 eps
Here for Promo
TV · as Self · 1 ep
My Heart Puppy
Movie · as Ah-min
My Demon
TV · as Do Do-hee · 16 eps
The Seasons
TV · as Self · 1 ep
20th Century Girl
Movie · as Na Bo-ra
Young Actors' Retreat
TV · as Self · 8 eps
The 8th Night
Movie · as Ae-ran
Lovers of the Red Sky
TV · as Hong Chun-gi · 16 eps
One Ordinary Day
TV · as Holding cell girl · 1 ep
House on Wheels
TV · as Self · 1 ep
Backstreet Rookie
TV · as Jung Saet-byul · 16 eps
Kim You-jung’s Half Holiday in Italy
TV · as Self · 8 eps
Golden Slumber
Movie · as Soo-ah
Dark, Deadly & Dreadful
Movie · as Wei (Room 731)
Clean with Passion for Now
TV · as Gil Oh-sol · 16 eps
Amazing Saturday
TV · as Self · 1 ep
Because I Love You
Movie · as Scully
Love in the Moonlight
TV · as Hong Ra-on / Hong Sam-nom · 18 eps
Circle of Atonement
Movie · as Lee Jung-hyun
Room 731
Movie · as Wei
Angry Mom
TV · as Oh Ah-ran · 16 eps
Men on a Mission
TV · as Self · 1 ep
Thread of Lies
Movie · as Kim Hwa-yeon
The Dirge Singer
Movie · as Yun-shim
Secret Door
TV · as Young Seo Ji-dam · 24 eps
Love Cells
TV · as Ne-bi · 23 eps
7 Travelers
TV · as Self · 13 eps
Commitment
Movie · as Ri Hye-in
Golden Rainbow
TV · as Kim Baek-won (Teen) · 41 eps
Moon Embracing the Sun
TV · as Young Heo Yeon-woo · 20 eps
May Queen
TV · as Young Chun Hae-joo · 38 eps
Mak Irae Show: Just Do It Expedition
TV · as Self · 1 ep
Gye Baek, Warrior’s Fate
TV · as Kahi · 36 eps
On the Pitch
Movie · as Radio female soldier
Grudge: The Revolt of Gumiho
TV · as Yeon-yi · 16 eps
Road No. 1
TV · as Young Kim Soo-yeon · 20 eps
Jewel in the Crown
TV · as Young Dong-yi · 60 eps
Running Man
TV · as Self · 2 eps
KBS Drama Special
TV · as Yun-shim · 1 ep
Flames of Desire
TV · as Young Yoon Na-young / Young Baek In-ki · 50 eps
Possessed
Movie · as Ji-eun
Paradise
Movie · as Hwa-ran
Tidal Wave
Movie · as Ji-min
Cain and Abel
TV · as Young Kim Seo-yeon · 20 eps
Tamra, the Island
TV · as Jang Beo-sul · 16 eps
Melon Music Awards
TV · as Messenger · 1 ep
Temptation of an Angel
TV · as Young Ju Ah-ran · 21 eps
The Great Queen Seondeok
TV · as Princess Cheonmyeong (Child) · 62 eps
The Chaser
Movie · as Eun-ji
Do You See Seoul?
Movie · as Yeong-mi
Iljimae
TV · as Young Byeon Eun-chae · 20 eps
Painter of the Wind
TV · as Young Shin Yun-bok · 20 eps
Powerful Opponents
TV · as Yoo Kkot-nim · 16 eps
Bank Attack
Movie · as Bae Yeon-hee
Rainbow Eyes
Movie · as Hye-seo's daughter
Hwang Jin Yi
Movie · as Young Jin-yi
2 Days and 1 Night
TV · as Self · 3 eps
New Heart
TV · as Yun-ah · 1 ep
Evasive Inquiry Agency
TV · as Young Yoo Eun-jae · 16 eps
4 Horror Tales: Hidden Floor
Movie · as Yeo Joo-hee
Lump of Sugar
Movie · as Young Si-eun
My Beloved Sister
TV · as Pink · 51 eps
Thank You, My Life
TV · as Yoon Hyun-ji · 24 eps
All for Love
Movie · as Kim Jin-a
Lady Vengeance
Movie · as Jae-kyung
Infinite Challenge
TV · as Self · 1 ep
DMZ (Demilitarized Zone)
Movie · as Young Lee Soo-hyun
SBS Drama Awards
TV · as Host · 5 eps