Yoon Jeong-seop Filmography
| 2025 | The Potato Lab (TV Series) · as Lee Chung-Hyeon |
| 2024 | Harbin · as Independence Army |
| 2024 | BEGINS ≠ YOUTH (TV Series) · as Teacher |
| 2023 | The Worst of Evil (TV Series) · as Detective Sin |
| 2023 | Phantom · as Black Party Member 2 |
| 2022 | Bad Prosecutor (TV Series) · as Investigator Park |
| 2022 | Hunt · as International Department Agent 1 |
| 2022 | Handsome · as Sin Jae Hyeok |
| 2021 | Imitation (2021) (TV Series) · as [movie Filming Staff ] |
| 2020 | True Beauty (2020) (TV Series) · as [joo Hun's Assistant] |
| 2019 | The Divine Move 2: The Wrathful · as 100 Multiplayer Baduk Players |
| 2019 | Rookie Historian Goo Hae-Ryung (TV Series) · as General Hwang |
| 2019 | Haechi (TV Series) · as Saheonbu Inspector |
| 2017 | 탐사보도 세븐 (TV Series) |
| 2016 | Hyeon's Quartet · as Valmont |
| 2015 | Afternoon Class · as Cast |