Kim Se-jeong

Biography

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.”

Known For

Running Man

Men on a Mission

You Hee-yeol's Sketchbook

Amazing Saturday

Home Alone

Law of the Jungle

The Uncanny Counter

The Seasons

All Movies (3)

• SEOUL FESTA 2022 K-POP SUPER LIVE2022 · as MC
• I.5.I - Yes, I Love It!2021 · as Sejeong
• I.O.I - "Time Slip" Concert2017 · as Sejeong

All TV Shows (49)

• Uh, But Like, Seriously!2026 · as Self
• Moon River2025 · as Park Dal-yi
• Table Tales2025
• Yoobari Talkbari2025 · as Self
• Brewing Love2024 · as Chae Yong-ju
• Universe Ticket2023 · as Unicorn
• MONSTOP Travel Agency2023 · as self (KIM SEJEONG)
• The Seasons2023 · as Self
• Office Romance Recipe2022 · as Rani
• Today's Webtoon2022 · as Oh Ma-Eum
• Business Proposal2022 · as Shin Ha-ri
• Lee Mujin Service2022 · as Guest
• Hurrah for Independence2021 · as Self
• The Uncanny Return2021
• The Uncanny Counter2020 · as Do Ha-na
• IU's Palette2020 · as Self - Guest
• Clean Cam2020
• I Wanna Hear Your Song2019 · as Hong Yi-Young
• Where Is My Home2019
• Prison Life of Fools2019 · as Self
• Big Picture Family2018
• Galileo: Awakened Universe2018
• Idol Room2018 · as Self
• Busted!2018 · as Kim Se-jeong
• Amazing Saturday2018 · as Self
• 마이박스2018
• Baek Jong-won's Alley Restaurant2018 · as Self
• Salty Tour2017 · as Self (Sejeong)
• Master Key2017
• School 20172017 · as Ra Eun-Ho
• Gugudan Project: Extreme School Trip2016 · as Herself
• The Sound of Your Heart2016 · as Woman next door in Room 205
• Let's Eat Dinner Together2016 · as Self
• What Are Gugudan Doing?2016 · as Kim Se-jeong
• 어서옵SHOW2016
• Standby I.O.I2016 · as Self
• Sister's Slam Dunk2016 · as Self
• Produce 1012016 · as Self - Contestant
• Men on a Mission2015 · as Self
• Two Yoo Project - Sugar Man2015 · as Self
• After School Club2013 · as Self
• Home Alone2013 · as Self
• K-pop Star2011 · as Self - Contestant
• SNL Korea2011 · as Self
• Law of the Jungle2011
• Running Man2010
• You Hee-yeol's Sketchbook2009 · as Self
• MBC Entertainment Awards2001 · as Self - MC
• High School Queen— · as Kim Cheong-ha / Park Da-jin