Acting · Gimje, North Jeolla, South Korea · Born August 28, 1996
Sejeong (세정) is a South Korean singer-songwriter and actress signed under Jellyfish Entertainment. After coming into prominence as the runner-up on the hit idol competition show “Produce 101,” she debuted in 2016 as a solo artist and member of now-disbanded girl groups I.O.I and Gugudan. In 2017, she was cast in her first leading drama role in KBS’s “School 2017.”
TVUh, But Like, Seriously!
2026
as Self
TVMoon River
2025
as Park Dal-yi
TVTable Tales
2025
TVYoobari Talkbari
2025
as Self
TVBrewing Love
2024
as Chae Yong-ju
TVUniverse Ticket
2023
as Unicorn
TVMONSTOP Travel Agency
2023
as self (KIM SEJEONG)
TVThe Seasons
2023
as Self
TVOffice Romance Recipe
2022
as Rani
MovieSEOUL FESTA 2022 K-POP SUPER LIVE
2022
as MC
TVToday's Webtoon
2022
as Oh Ma-Eum
TVBusiness Proposal
2022
as Shin Ha-ri
TVLee Mujin Service
2022
as Guest
MovieI.5.I - Yes, I Love It!
2021
as Sejeong
TVHurrah for Independence
2021
as Self
TVThe Uncanny Return
2021
TVThe Uncanny Counter
2020
as Do Ha-na
TVIU's Palette
2020
as Self - Guest
TVClean Cam
2020
TVI Wanna Hear Your Song
2019
as Hong Yi-Young
TVWhere Is My Home
2019
TVPrison Life of Fools
2019
as Self
TVBig Picture Family
2018
TVGalileo: Awakened Universe
2018
TVIdol Room
2018
as Self
TVBusted!
2018
as Kim Se-jeong
TVAmazing Saturday
2018
as Self
TV마이박스
2018
TVBaek Jong-won's Alley Restaurant
2018
as Self
TVSalty Tour
2017
as Self (Sejeong)
TVMaster Key
2017
TVSchool 2017
2017
as Ra Eun-Ho
MovieI.O.I - "Time Slip" Concert
2017
as Sejeong
TVGugudan Project: Extreme School Trip
2016
as Herself
TVThe Sound of Your Heart
2016
as Woman next door in Room 205
TVLet's Eat Dinner Together
2016
as Self
TVWhat Are Gugudan Doing?
2016
as Kim Se-jeong
TV어서옵SHOW
2016
TVStandby I.O.I
2016
as Self
TVSister's Slam Dunk
2016
as Self
TVProduce 101
2016
as Self - Contestant
TVMen on a Mission
2015
as Self
TVTwo Yoo Project - Sugar Man
2015
as Self
TVAfter School Club
2013
as Self
TVHome Alone
2013
as Self
TVK-pop Star
2011
as Self - Contestant
TVSNL Korea
2011
as Self
TVLaw of the Jungle
2011
TVRunning Man
2010
TVYou Hee-yeol's Sketchbook
2009
as Self
TVMBC Entertainment Awards
2001
as Self - MC
High School Queen
as Kim Cheong-ha / Park Da-jin
