Seiya Yamanaka Filmography
| 2025 | The Dinner Table Detective (TV Series) · as Doctor (voice) |
| 2024 | Ramen Akaneko (TV Series) · as Food Cart Customer (voice) |
| 2023 | Helck (TV Series) · as Senator (voice) |
| 2021 | The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (TV Series) · as Taigu (voice) |
| 1992 | Special Rescue Exceedraft (TV Series) · as Moriyama |