| Seiyuu | Role |
| Ami Koshimizu | Nadja |
| Kenjiro Tsuda | Harvey |
| Eiji Maruyama | Duke Preminger |
| Mitsuki Saiga | Francis |
| Tomokazu Seki | Oscar |
| Reiko Yasuhara | Colette (Nadja's Mother) |
| Mitsuru Miyamoto | Waldmüller |
| Rumi Shishido | Rosmarie |
| Kazunari Kojima | Bianco |
| Kenji Nomura | Rosso |
| Takumi Yamazaki | Abel |
| Fumiko Orikasa | Sylvie |
| Daisuke Kishio | Thomas |
| Reiko Kiuchi | Kennosuke |
| Ikue Ohtani | Rita |
| Hisako Kyouda | Obaba (Anna Petrova) |
| Kazuya Ichijou | Georg |
| Rika Fukami | Carmen (Episode 25 & 29) |
| Akio Ohtsuka | Jose Rodriguez (Episode 24, 25, 29) |
| Emi Shinohara | Rita's Mother (Episode 22) |
| Issei Miyazaki | Raymon (Episode 21) |
| Mika Kanai | Luka (Episode 20) |
| Naozumi Takahashi | Fernando (Episode 7, 10, 28) |
| Daisuke Ono | Massimo (Episode 20) |
| Junko Takeuchi | Moore (Episode 30) |
| Miwa Matsumoto | Moore's Brother (Episode 30) |
| Misa Watanabe | Marie (Episode 31) |
| Tomoko Kawakami | Stephan (Episode 31) |
| Haruhi Terada | Madam Reinhardt (Episode 38) |
| Chika Sakamoto | Jean (Episode 41) |
| Romi Paku | Allan (Episode 41) |
| Miki Itou | Julieta (Episode 44) |
| Masashi Hirose | Watson (Episode 43) |
| Sanae Kobayashi | Roberta (Episode 20 & 35) |
| Miwa Matsumoto | Manuela (Episode 20) |
| Mamiko Noto | Alex (Episode 1, 2, 11) |
| Mamiko Noto | Phoebe (Episode 42) |
| Miwa Matsumoto | Daisy (Episode 1, 2, 12) |
| Miwa Matsumoto | Martha (Episode 5) |
| Fumihiko Tachiki | Count Harcourt (5, 36, 45) |
| Tetsuo Kaneo | Alphoncis Jean Marais (Episode 6) |
| Satsuki Yukino | Madeleine (Episode 6) |
| Kae Araki | Simone (Episode 7) |
| Kenichi Suzumura | Leonardo (Episode 7, 9, 16, 17, 28, 50) |
| Yuka Imai | Ema Queensberry (Episode 4, 5, 45) |
| Akiko Nakagawa | Therese (Episode 7) |
| Naoki Yanagi | John (Episode 9, 43, 44) |
| Yuki Kaida | TJ (Episode 6, 10, 11, 14, 18) |
| Kumiko Watanabe | Mario (Episode 19) |
| Hiroaki Hirata | Carlo (Episode 19) |
| Tomo Saeki | Paulo (Episode 20) |
| Yuki Kaida | Cream |