Acting
- 2026OK! Let's Get DivorcedJi Seung-ho12 ep.
- 2026ReverseJae-yong8 ep.
- 2026Our UniverseJo Mu-saeng12 ep.
- 2022PachinkoMr. Chung's brother1 ep.
- 2022Through the DarknessHwang Dae-sun1 ep.
- 2021JirisanDetective1 ep.
Guest appearances
- 2025You Quiz on the BlockSelf1 ep.
- 2023Home AloneSelf1 ep.
- 2022PachinkoMr. Chung's brother1 ep.
- 2022Through the DarknessHwang Dae-sun1 ep.
- 2021JirisanDetective1 ep.
Also known as: Ku Sung Hwan · Gu Seong-hwan · Koo Sung-hwan · Ku Seong-hwan · Gu Sung-hwan