Biography
Park Sieun (박시은) is a South Korean actress and singer. She is a member of the girl group STAYC. She made her acting debut in 2014 as one of the main characters in the children's television series Pluto Secret Society. Her father is singer Park Nam Jung.
On January 18, 2017, it was announced that Park had signed a contract with JYP Entertainment. She left JYP Entertainment and is now under High Up Entertainment.
After signing with High Up Entertainment, she debuted as a member of the girl group STAYC in November 2020.
Filmography
Cast Credits

KPOPPED
Character: Self
TV • 2025

Inspector
Character: Self
TV • 2024

Metamorphic
Character: Self
MOVIE • 2024

Make Mate 1
Character: Special C Mate
TV • 2024
![STAYC 1st World Tour [TEENFRESH] in Seoul](https://image.tmdb.org/t/p/w185/3QVbLW4FOW9xLg83CpDIIuoyyub.jpg)
STAYC 1st World Tour [TEENFRESH] in Seoul
Character: Self
MOVIE • 2024

PANGPANG STAYC
Character:
TV • 2023

STAYC's Secret in Busan
Character: Self
TV • 2023

Just an Excuse
Character: Self
TV • 2022

IDOL 1N2D
Character:
TV • 2022

Blue Dragon Series Awards
Character: Self
TV • 2022

Show!terview with Sunmi
Character: Guest
TV • 2022
Lee Mujin Service
Character: Guest
TV • 2022

STAYCation
Character: Self
TV • 2021

STAYC
Character: Self
TV • 2020

Do You Like Brahms?
Character: 조수안
TV • 2020

Mystic Pop-up Bar
Character: Young Wol-joo
TV • 2020

Everything and Nothing
Character: An Seo-yeon
TV • 2019

The Crowned Clown
Character: Choi Kye Hwan
TV • 2019

Still 17
Character: Woo Seo-Ri (young)
TV • 2018

Just Between Lovers
Character: Ha Moon-Soo (young)
TV • 2017