| Seiyuu | Role |
| Yumi Kakazu | Silvia de Alisia |
| Takuma Terashima | Apollo |
| Masaya Onosaka | Pierre Vieira |
| Yuuto Kazama | Glen Anderson |
| Tomokazu Sugita | Sirius de Alisia |
| Nobuo Tobita | Jean-Jerome Jorge |
| Sakiko Tamagawa | Sophia Belin |
| Unsho Ishizuka | Gen Fudo |
| Romi Paku | Kurt / Chloe |
| Sanae Kobayashi | Hong Lihua |
| Daisuke Sakaguchi | Jun Lee |
| Tomoko Kawakami | Futaba (Episode 19 & 20) |
| Katsuyuki Konishi | Shiruha (Episode 12, 14, 20, 26) |
| Kazuki Yao | Moroha |
| Susumu Chiba | Baron |
| Mako Hyoudou | Otoha |
| Toshiyuki Morikawa | Tooma |
| Emi Shinohara | Sirius's Mother (Episode 7) |
| Mayumi Yoshida | Katharine (Episode 8) |
| Mikako Takahashi | Miranda (Episode 8) |
| Ikuya Sawaki | Sirius's Father (Episode 7) |
| Yoshino Takamori | Titania (Episode 9) |
| Mai Nakahara | Anna (Episode 15) |
| Hisao Egawa | Lopez (Episode 15) |
| Sayuri | Esperanca (Episode 15) |
| Mikako Takahashi | Manamanami (Episode 4) |