Kim Se-jeong
Biography
Kim Se-jeong, also known by the stage names 김세정 and Sejeong, is a South Korean singer-songwriter and actress born on August 28, 1996, in Gimje, North Jeolla, South Korea. Signed under Jellyfish Entertainment, she came into prominence as the runner-up on the idol competition show Produce 101. She debuted in 2016 as a solo artist and as a member of the girl groups I.O.I and Gugudan, both of which are now disbanded. In 2017, she was cast in her first leading drama role in the KBS television series School 2017. Known primarily for her work in acting with a total of fifty-four known credits on The Movie Database, she is active in the entertainment industry as both a performer and musician.
Career overview
Kim Se-jeong is a South Korean singer-songwriter and actress signed under Jellyfish Entertainment. She came into prominence as the runner-up on the hit idol competition show Produce 101. Following this success, she debuted in 2016 as a solo artist and as a member of the now-disbanded girl groups I.O.I and Gugudan.
Expanding her career into television, she secured her first leading drama role in 2017 when she was cast in the KBS series School 2017. Her professional profile includes fifty-four known credits on the platform. Born on August 28, 1996, in Gimje, North Jeolla, South Korea, she is also known by her birth name Kim Se-jeong and the single-name identifier Sejeong, recognized primarily for her work in acting.
Ask the Vault
Ask anything about Kim Se-jeong.
Frequent co-stars
Career timeline
Full filmography
- Uh, But Like, Seriously! (2026) as Self
- Moon River (2025) as Park Dal-yi
- Yoobari Talkbari (2025) as Self
- Table Tales (2025)
- Brewing Love (2024) as Chae Yong-ju
- The Seasons (2023) as Self
- MONSTOP Travel Agency (2023) as self (KIM SEJEONG)
- Universe Ticket (2023) as Unicorn
- Lee Mujin Service (2022) as Guest
- Business Proposal (2022) as Shin Ha-ri
- Business Proposal (2022) Vocals
- Today's Webtoon (2022) as Oh Ma-Eum
- Office Romance Recipe (2022) as Rani
- SEOUL FESTA 2022 K-POP SUPER LIVE (2022) as MC
- Hurrah for Independence (2021) as Self
- The Uncanny Return (2021)
- I.5.I - Yes, I Love It! (2021) as Sejeong
- The Uncanny Counter (2020) as Do Ha-na
- IU's Palette (2020) as Self - Guest
- Clean Cam (2020)
- Where Is My Home (2019)
- Crash Landing on You (2019) Vocals
- Prison Life of Fools (2019) as Self
- I Wanna Hear Your Song (2019) as Hong Yi-Young
- Amazing Saturday (2018) as Self
- Mr. Sunshine (2018) Theme Song Performance
- Baek Jong-won's Alley Restaurant (2018) as Self
- Idol Room (2018) as Self
- Busted! (2018) as Kim Se-jeong
- Galileo: Awakened Universe (2018)
- Big Picture Family (2018)
- 마이박스 (2018)
- Salty Tour (2017) as Self (Sejeong)
- School 2017 (2017) as Ra Eun-Ho
- Master Key (2017)
- I.O.I - "Time Slip" Concert (2017) as Sejeong
- Let's Eat Dinner Together (2016) as Self
- The Sound of Your Heart (2016) as Woman next door in Room 205
- Sister's Slam Dunk (2016) as Self
- Produce 101 (2016) as Self - Contestant
- 어서옵SHOW (2016)
- What Are Gugudan Doing? (2016) as Kim Se-jeong
- Standby I.O.I (2016) as Self
- Gugudan Project: Extreme School Trip (2016) as Herself
- Men on a Mission (2015) as Self
- Two Yoo Project - Sugar Man (2015) as Self
- Home Alone (2013) as Self
- After School Club (2013) as Self
- Law of the Jungle (2011)
- SNL Korea (2011) as Self
- K-pop Star (2011) as Self - Contestant
- Running Man (2010)
- You Hee-yeol's Sketchbook (2009) as Self
- MBC Entertainment Awards (2001) as Self - MC
- High School Queen as Kim Cheong-ha / Park Da-jin