Kim Se-jeong

Kim Se-jeong

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.”

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Known For

Filmography

2025

TV
The Moon Flows in This River
as Park Dal-yi
TV - Released: 9/12/2025

2024

Brewing Love
Brewing Love
as Chae Yong-ju
TV - Released: 11/4/2024

2023

Universe Ticket
Universe Ticket
as Unicorn
TV - Released: 11/18/2023
The Seasons
The Seasons
as Self
TV - Released: 2/5/2023
MONSTOP Travel Agency
MONSTOP Travel Agency
as self (KIM SEJEONG)
TV - Released: 7/26/2023

2022

SEOUL FESTA 2022 K-POP SUPER LIVE
SEOUL FESTA 2022 K-POP SUPER LIVE
as MC
Movie - Released: 8/12/2022
Today's Webtoon
Today's Webtoon
as Oh Ma-Eum
TV - Released: 7/29/2022
Business Proposal
Business Proposal
as Shin Ha-ri
TV - Released: 2/28/2022
Lee Mujin Service
Lee Mujin Service
as Guest
TV - Released: 2/22/2022
Office Romance Recipe
Office Romance Recipe
as Rani
TV - Released: 11/3/2022

2021

I.5.I - Yes, I Love It!
I.5.I - Yes, I Love It!
as Sejeong
Movie - Released: 5/4/2021
Hurrah for Independence
Hurrah for Independence
as Self
TV - Released: 2/22/2021
The Uncanny Return
The Uncanny Return
TV - Released: 2/7/2021

2020

IU's Palette
IU's Palette
as Self - Guest
TV - Released: 9/1/2020
Clean Cam
Clean Cam
TV - Released: 1/8/2020
The Uncanny Counter
The Uncanny Counter
as Do Ha-na
TV - Released: 11/28/2020

2019

Prison Life of Fools
Prison Life of Fools
as Herself
TV - Released: 3/16/2019
I Wanna Hear Your Song
I Wanna Hear Your Song
as Hong Yi-Young
TV - Released: 8/5/2019
Where Is My Home
Where Is My Home
TV - Released: 3/31/2019

2018

Busted!
Busted!
as Kim Se-jeong
TV - Released: 5/4/2018
Galileo: Awakened Universe
Galileo: Awakened Universe
TV - Released: 7/15/2018
마이박스
마이박스
TV - Released: 3/5/2018
Baek Jong-won's Alley Restaurant
Baek Jong-won's Alley Restaurant
as Self
TV - Released: 1/5/2018
Amazing Saturday
Amazing Saturday
as Self
TV - Released: 4/7/2018
Idol Room
Idol Room
as Herself
TV - Released: 5/12/2018

2017

I.O.I - "Time Slip" Concert
I.O.I - "Time Slip" Concert
as Sejeong
Movie - Released: 1/22/2017
School 2017
School 2017
as Ra Eun-Ho
TV - Released: 7/17/2017
Master Key
Master Key
TV - Released: 10/14/2017
Salty Tour
Salty Tour
as Self (Sejeong)
TV - Released: 11/25/2017

2016

The Sound of Your Heart
The Sound of Your Heart
as Woman next door in Room 205
TV - Released: 11/7/2016
어서옵SHOW
어서옵SHOW
TV - Released: 5/6/2016
Produce 101
Produce 101
as Herself
TV - Released: 1/22/2016
Standby I.O.I
Standby I.O.I
as Kim Se-jeong
TV - Released: 4/22/2016
Let's Eat Dinner Together
Let's Eat Dinner Together
as Herself
TV - Released: 10/19/2016
What Are Gugudan Doing?
What Are Gugudan Doing?
as Kim Se-jeong
TV - Released: 10/4/2016
Gugudan Project: Extreme School Trip
Gugudan Project: Extreme School Trip
as Herself
TV - Released: 11/9/2016

2015

Men on a Mission
Men on a Mission
as Self
TV - Released: 12/5/2015
Two Yoo Project - Sugar Man
Two Yoo Project - Sugar Man
as Herself
TV - Released: 10/20/2015

2013

Home Alone
Home Alone
as Self
TV - Released: 3/22/2013

2011

Law of the Jungle
Law of the Jungle
TV - Released: 10/21/2011
SNL Korea
SNL Korea
as Self
TV - Released: 12/3/2011
K-pop Star
K-pop Star
as Self - Contestant
TV - Released: 12/4/2011

2010

Running Man
Running Man
TV - Released: 7/11/2010

2009

You Hee-yeol's Sketchbook
You Hee-yeol's Sketchbook
as Self
TV - Released: 4/24/2009

2001

MBC Entertainment Awards
MBC Entertainment Awards
as Self - MC
TV - Released: 12/29/2001