Acting
- 2024Song StealerSelf2 ep.
- 2023EL7Z UP & GOSelf1 ep.
- 2023Queendom PuzzleSelf - Contestant10 ep.
- 2020IDOL on QuizSelf1 ep.
- 2020Yuri's Winning RecipeSelf1 ep.
- 2020Road to KingdomGuest1 ep.
- 2020Lovelyz Diary Bonus Book8 ep.
- 2019QueendomSelf - Contestant10 ep.
- 2019How Do You Play?Self3 ep.
- 2018Lovelyz “Lost N Found”5 ep.
- 2018Urban LegendSelf2 ep.
- 2018아이돌 직업일기 굿잡
- 2017Lovelyz Loves CanadaSelf5 ep.
- 2016Matching! Boys ArcheryHong Si Ah8 ep.
- 2016Girl SpiritSelf11 ep.
- 2016MEET&GREETSelf (Kei)1 ep.
- 2016Lovelyz in WonderlandSelf (Kei)8 ep.
- 2015Men on a MissionSelf2 ep.
- 2015Two Yoo Project - Sugar ManSelf2 ep.
- 2015Mystery Music Show: King of Mask SingerSelf - Panelist6 ep.
- 2014Lovelyz Diary48 ep.
- 2011Weekly IdolSelf2 ep.
- 2004Vampire HostSakura12 ep.
Behind the camera
- 2018Rich Man, Poor WomanTheme Song Performance16 ep.
Guest appearances
- 2025Mystery Music Show: King of Mask SingerSelf - Panelist6 ep.
- 2024How Do You Play?Self3 ep.
- 2024Song StealerSelf2 ep.
- 2021Yuri's Winning RecipeSelf1 ep.
- 2020IDOL on QuizSelf1 ep.
- 2020Road to KingdomGuest1 ep.
- 2015Two Yoo Project - Sugar ManSelf2 ep.
- 2019Amazing SaturdaySelf1 ep.
- 2015Weekly IdolSelf2 ep.
- 2016Men on a MissionSelf2 ep.
- 2017Running ManSelf2 ep.
- 2017You Hee-yeol's SketchbookSelf1 ep.
Also known as: 케이 · 김지연 · 러블리즈 · Lovelyz · Kim Ji-yeon · Кей · Ким Чжи Ён