Moon Seong-hyun

Where to watch Moon Seong-hyun in United States. On screen since 2021. Licensed apps only — 18 titles we track below.

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.

Where to watch their titles

Vincenzo
Jang Han Seok [Teen] · 2021
Alchemy of Souls
Seo Yul (teen) · 2022
Hometown Cha-Cha-Cha
Hong Doo-shik (teenager) · 2021
Queen of Tears
Baek Hyun-woo (teen) · 2024
Reborn Rich
Jin Seong-jun (young) · 2022
Under the Queen's Umbrella
Prince Shimso · 2022
Trigger
Teenage Moon Baek · 2025
Sh**ting Stars
Gong Tae-seong (teen) · 2022
Hello, Me!
Chae Seong-U / Chae Chi-Su · 2021
Our Sticky Love
Kim Pil-seung · 2026
Dr. Cheon and the Lost Talisman
Young Dr. Cheon · 2023
The King of Pigs
Kang-min (teen) · 2022
The One and Only
Min Woo-Cheon (teen) · 2021
Stock Struck
Lim Ye Joon (teen) · 2022
The Chairman is Level 9
Na Yi-soo · 2024
Beauty and Mr. Romantic
Ko Pil-seung (teen) · 2024
Fragment
2024
Still Shining
2026