Moon Seong-hyun

Moon Seong-hyun

Moon Seong-hyun is a South Korean actor born on June 2, 2006. He is known for playing the younger versions of male leads in several popular K-dramas, beginning his career in 2021. He is managed by FNC Entertainment. He first appeared in the 2021 dramas Vincenzo and Hometown Cha-Cha-Cha. He gained significant recognition for his role as the young Seo Yul in the fantasy drama Alchemy of Souls and as Prince Simso in the historical series Under the Queen's Umbrella. His emotional performance in the latter received high praise. In 2024, Moon took on his first starring role in the web drama The Chairman of Class 9.he was nominated for "Best Young Actor" at the 60th Baeksang Arts Awards and won "Best Young Actor" at KBS Drama Awards with Beauty and Mr. Romantic.

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Known For

Filmography

2025

Trigger
Trigger
as Moon Baek (teen)
TV - Released: 7/25/2025

2024

Fragment
Fragment
Movie - Released: 10/7/2024
Level 9 Chairman
Level 9 Chairman
as Na Yi-soo
TV - Released: 4/29/2024
Queen of Tears
Queen of Tears
as Baek Hyun-woo (teen)
TV - Released: 3/9/2024
Beauty and Mr. Romantic
Beauty and Mr. Romantic
as Ko Pil-seung (teen)
TV - Released: 3/23/2024

2023

Dr. Cheon and the Lost Talisman
Dr. Cheon and the Lost Talisman
as Young Dr. Cheon
Movie - Released: 9/27/2023

2022

Shooting Stars
Shooting Stars
as Gong Tae-seong (teen)
TV - Released: 4/22/2022
Reborn Rich
Reborn Rich
as Jin Seong-jun (young)
TV - Released: 11/18/2022
Under the Queen's Umbrella
Under the Queen's Umbrella
as Prince Shimso
TV - Released: 10/15/2022
The King of Pigs
The King of Pigs
as Kang-min (teen)
TV - Released: 3/18/2022
Alchemy of Souls
Alchemy of Souls
as Seo Yul (teen)
TV - Released: 6/18/2022
Stock Struck
Stock Struck
as Lim Ye Joon (teen)
TV - Released: 8/12/2022

2021

Vincenzo
Vincenzo
as Jang Han Seok [Teen]
TV - Released: 2/20/2021
Hometown Cha-Cha-Cha
Hometown Cha-Cha-Cha
as Hong Doo-shik (teenager)
TV - Released: 8/28/2021
Hello, Me!
Hello, Me!
as Chae Seong-U / Chae Chi-Su
TV - Released: 2/17/2021
The One and Only
The One and Only
as Min Woo-Cheon (teen)
TV - Released: 12/20/2021