PC: Highup Entertainment
|Name||SIEUN | 시은|
|Full Name||Park Sieun | 박시은 | 朴蒔恩|
|Born||August 1, 2001|
|Hometown||Ichon-dong, Yongsan-gu, Seoul, South Korea|
|Height||158cm | 5′-02″|
|Family||Mother, Father, Younger Sister|
Goyang High School of Arts
Sangmyung Middle School
Seoul Shinyongsan Elementary School → Sangmyeong Elementary School
|Years Active||2014 – present|
|2018||Golden Slumber||young Jeon Sunyoung|
|2015||Love Forecast||Kang Junhee|
|2020||Mystic Pop-up Bar||young Weolju|
|2019||Everything And Nothing||Ahn Seoyeon|
|2018||Still 17||young Woo Seori|
|2017||Queen for Seven Days||young Shin Chaekyung|
|Criminal Minds||Mo Jieun|
|Rain or Shine||young Ha Moonsoo|
|The Good Wife||Lee Seoyeon|
|Beautiful Gong Shim||young Gong Shim|
|The Gentlemen of Wolgyesu Tailor Shop||young Oh Youngeun|
|2015||Six Flying Dragons||young Yeonhee|
|2014||Pluto Secret Society||Jin Sunmi|
|Pride and Prejudice||young Han Yeolmoo|
|2020||Do You Like Brahms?||Jo Sooan|
|2019||The Crowned Clown||Choi Gyehwan|
- She started her acting career in 2014.
- She got into Highup Entertainment as a trainee in 2019.
- Highup audition songs: FANCY by TWICE, If Only by SEJEONG
- She is a former Fantagio trainee.
- Kpop Idol Training Period: 4 years
- She is a Christian.
- Sieun graduated from Goyang High School of Arts (Department of Acting).
- She is majoring in Theatre at Chung-Ang University.
- Her childhood dream was to become an entertainer.
- Motto: Love yourself, see far, share with people, and cherish the present.
- Hobbies: rewatching movies and TV series, writing a diary and lyrics, listening to music
- Specialties: vocal, piano, flexibility, English
- If she had not made it as a Kpop idol, she would have worked in the music industry.
- If she could be a professional athlete, she would choose figure skating.
- MBTI: ENFJ
- Artist: IU
- Color: ocean color, purple
- English Word: grace
- Film: Titanic (1997), Catch Me If You Can (2002), Inception (2010)
- Korean Word: maeum (heart)
- Season of the Year: summer
Name: Heo Eunjoo
Park Namjung (singer)
- Younger Sister
Name: Park Siwoo | 박시우