Aug 28, 1996 - Gimje, North Jeolla, South Korea
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.”
Media | ||||
|---|---|---|---|---|
| Movie | 2022 | SEOUL FESTA 2022 K-POP SUPER LIVE | MC | |
| Movie | 2017 | I.O.I - "Time Slip" Concert | Sejeong | |
| Movie | 2021 | I.5.I - Yes, I Love It! | Sejeong | |
| TV Show | 2021 | Hurrah for Independence | Self | 1 |
| TV Show | 2021 | The Uncanny Return | 1 | |
| TV Show | 2011 | Law of the Jungle | 6 | |
| TV Show | 2022 | Today's Webtoon | Oh Ma-Eum | 16 |
| TV Show | 2022 | Business Proposal | Shin Ha-ri | 12 |
| TV Show | 2016 | The Sound of Your Heart | Woman next door in Room 205 | 1 |
| TV Show | 2023 | Universe Ticket | Unicorn | 10 |
| TV Show | 2016 | 어서옵SHOW | 1 | |
| TV Show | 2023 | The Seasons | Self | 1 |
| TV Show | 2023 | MONSTOP Travel Agency | self (KIM SEJEONG) | 1 |
| TV Show | 2020 | IU's Palette | Self - Guest | 1 |
| TV Show | 2017 | School 2017 | Ra Eun-Ho | 16 |
| TV Show | 2015 | Men on a Mission | Self | 3 |
| TV Show | 2017 | Master Key | 1 | |
| TV Show | 2018 | Busted! | Kim Se-jeong | 28 |
| TV Show | 2018 | Galileo: Awakened Universe | 9 | |
| TV Show | 2020 | Clean Cam | 5 | |
| TV Show | 2018 | 마이박스 | 1 | |
| TV Show | 2016 | Produce 101 | Herself | 1 |
| TV Show | 2022 | Lee Mujin Service | Guest | 1 |
| TV Show | 2019 | Prison Life of Fools | Herself | 2 |
| TV Show | 2016 | Standby I.O.I | Kim Se-jeong | 2 |
| TV Show | 2018 | Baek Jong-won's Alley Restaurant | Self | 12 |
| TV Show | 2016 | Let's Eat Dinner Together | Herself | 1 |
| TV Show | 2019 | I Wanna Hear Your Song | Hong Yi-Young | 32 |
| TV Show | 2009 | You Hee-yeol's Sketchbook | Self | 3 |
| TV Show | 2017 | Salty Tour | Self (Sejeong) | 5 |
| TV Show | 2018 | Amazing Saturday | Self | 2 |
| TV Show | 2011 | SNL Korea | Self | 2 |
| TV Show | 2019 | Where Is My Home | 1 | |
| TV Show | 2018 | Idol Room | Herself | 2 |
| TV Show | 2010 | Running Man | 2 | |
| TV Show | 2011 | K-pop Star | Self - Contestant | 22 |
| TV Show | 2022 | Office Romance Recipe | Rani | 4 |
| TV Show | 2016 | What Are Gugudan Doing? | Kim Se-jeong | 28 |
| TV Show | 2024 | Brewing Love | Chae Yong-ju | 12 |
| TV Show | 2001 | MBC Entertainment Awards | Self - MC | 2 |
| TV Show | 2013 | Home Alone | Self | 1 |
| TV Show | 2015 | Two Yoo Project - Sugar Man | Herself | 1 |
| TV Show | 2020 | The Uncanny Counter | Do Ha-na | 28 |
| TV Show | 2016 | Gugudan Project: Extreme School Trip | Herself | 5 |
| TV Show | 2025 | The Moon Flows in This River | Park Dal-yi | 12 |
Media | ||||
|---|---|---|---|---|
| TV Show | 2018 | Mr. Sunshine | Theme Song Performance | Sound |
| TV Show | 2019 | Crash Landing on You | Vocals | Sound |
| TV Show | 2022 | Business Proposal | Vocals | Sound |
