1. Kim So Hyun
In 2007, Kim So Hyun starred in her first drama, Que Sera, Sera at the age of 9.
10 years later, So Hyun starred in MBC’s The Emperor: Owner of the Mask and has been wowing fans with her stunning visuals.
2. Lee Hyun Woo
From his role 2005’s Spring Day to co-starring in the movie The Technicians, you won’t believe how much this actor changed in the 13 years since his debut.
3. Yoo Seung Ho
Many will probably remember Yoo Seung Ho from his role in 2002’s The Way Home, with his adorable boyish charm.
He has since grown into a stunning young man and co-star to, among others, Kim So Hyun in The Emperor: Owner of the Mask.
4. Park Shin Hye
Still maintaining her youthful and energized facial features, Park Shin Hye has grown and blossomed into a beautiful young woman throughout her acting career from Stairway to Heaven…
… to SBS’s Temperature of Love in 2017.
5. Park Gun Tae
Well known for his career beginning with the dramas I’m Sorry, I Love You and East of Eden, Park Gun Tae and his full cheeks were much adored in his youth.
Though he’s been relatively inactive lately, his growth into a striking young man hasn’t been.
6. Moon Geun Young
At only 13 years old, Moon Geun Young proved a talented youth in her role in Autumn In My Heart.
Now, 17 years later, Moon Geun Young has blossomed into a stunning woman. She recently starred in 2017’s Glass Garden.
7. Kim Sae Ron
From when she first came into public view with her role in 2009’s A Brand New Life, Kim Sae Ron has matured into a gorgeous young woman.
Now 17, Kim Sae Ron is stealing the hearts of boys across the nation with her appearances in dramas and films.
8. Lee Min Ho
No, this is not the Lee Min Ho you are thinking about (it’s the other one). Starting his acting when he was 5 years old, Lee Min Ho was recognized for his role in the 2001 film Waikiki Brothers.
Since then, he has starred in 10 films and starred in or appeared in over 20 K-Dramas.
9. Kim Yoo Jung
Another actress beginning at age 5, Kim Yoo Jung has continued to have a flawless and youthful face throughout her acting career.
Since her starring role Sympathy for Lady Vengeance, Kim Yoo Jung has appeared in 17 films and almost 30 dramas and grown into a breathtaking young woman.
10. Jin Jin Hee
Jin Jin Hee first captured viewers’ hearts in 2006’s Alone In Love as an adorable little girl.
She has since appeared in many films and K-dramas and continues to steal hearts as she matures into a beautiful young woman.
11. Yeo Jin Goo
Sometimes called the “Nation’s little brother”, Yeo Jin Goo made his first appearance on film in 2005’s Sad Movie.
Since then, he has starred in many films and dramas and grown into a striking young man.
12. Go Ah Sung
Go Ah Sung began her child acting career in 2004 as part of the children’s show Oolla Boolla Blue-jjang and got her big break in the 2006 film The Host.
Now, 11 years later, Go Ah Sung is turning heads as a beautiful young woman.
13. Seo Shin Ae
This vibrant young star began her acting career with the 2005 film Mr. Housewife, stealing the hearts of her audience with her adorable big cheeks.
Seo Shin Ae has since starred in many feature films and dramas and recently turned heads with her choice for a red carpet dress (pictured below).
14. Park Ji Bin
The child actor who played Geum Jan Di’s little brother in Boys Over Flowers transformed into a man after completing his military duties.
He may have lost his baby-face, but he’s certainly kept his signature charm.
15. Kim Hyang Gi
Beginning her career with the films Heart Is… and Cherry Tomato, Kim Hyang Gi quickly became a crowd-favorite with her small stature and adorable cheeks.
She has since matured into a sweet young woman with cheeks that are no less adorable! She recently co-starred with Kim Sae Ron in 2017’s Snowy Road.