| Seiyuu | Role |
| Takahiro Sakurai | Orpherus |
| Tomokazu Seki | Eduard |
| Toshihiko Seki | Ludwig |
| Souichirou Hoshi | Camus |
| Akira Ishida | Naoji |
| Takehito Koyasu | Isaac |
| Taiten Kusunoki | Rosenstolz Academy Principal |
| Chieko Higuchi | Erika |
| Yumi Kakazu | Robertine (Episode 1) |
| Satoshi Hino | Anri (Episode 1) |
| Masami Iwasaki | Fritz (Episode 6) |
| Akiko Hiramatsu | Ishtar (Episode 8) |
| Wataru Takagi | Douglas (Episode 9) |
| Nobutoshi Hayashi | Torger (Episode 10) |