| Seiyuu | Role |
| Ryo Hirohashi | Sora Naegino |
| Takehito Koyasu | Fool |
| Mai Nakahara | May Wong (Episode 29 - 51) |
| Fumiko Orikasa | Marion |
| Akeno Watanabe | Anna Heart |
| Keiji Fujiwara | Carlos (Kaleido Stage Owner) |
| Chinami Nishimura | Mia |
| Kaori Mizuhashi | Rosetta Passel |
| Sayaka Ohara | Layla Hamilton |
| Takahiro Sakurai | Leon Oswald |
| Susumu Chiba | Yuri Killian |
| Hiro Shimono | Ken |
| Aya Hisakawa | Sarah |
| Miyuki Sawashiro | Sophie (Episode 44 - 46, 48 - 51) |
| Hidenari Ugaki | Sora's Father (Episode 5, 19, 26, 40, 51) |
| Etsuko Kozakura | Yume Naegino |
| Emi Shinohara | Midori Naegino (Episode 19, 26, 40, 51) |
| Junichi Sugawara | Jean (Marion's Father) |
| Unsho Ishizuka | Policeman Jerry |
| Eizo Tsuda | Layla's Father (Episode 8, 18, 22, 25, 26, 28) |
| Etsuko Kozakura | Jonathan |
| Kotono Mitsuishi | Cathy (Episode 34, 41 - 44, 46, 48 - 51) |
| Rika Fukami | Dona Walker (Episode 47 & 51) |
| Hiromi Hirata | Ben (Episode 33) |
| Ryoka Shima | Layla's Maid |
| Yuko Satou | Julia (Episode 11) |
| Kaori | Miro (Episode 14) |
| Akane Oomae | Andy (Episode 33) |
| Yuu Sugimoto | Annu (Episode 30) |
| Junichi Suwabe | Ian (Episode 12) |
| Mahito Tsujimura | Bob (Episode 11) |
| Hideyuki Hori | Mike Abbot (Episode 34) |
| Seiji Sasaki | Puck (Episode 14) |
| Akane Oomae | Annie (Episode 1) |
| Risa Hayamizu | Yuri (as a child Episode 25) |
| Ryoka Shima | Mira (Episode 14 & 51) |
| Yuriko Yamaguchi | Cynthia (Episode 4) |
| Ken Yamaguchi | Mister Ling (Episode 9) |
| Ryoka Shima | Claire |
| Kouji Ishii | Jack Baron (Episode 11 & 48) |
| Tomohiro Nishimura | Simon Park (Episode 17) |
| Yoko Matsuoka | Sherryl (Episode 19) |
| Chiemi Chiba | Lucie (Episode 19) |
| Shizuka Itou | Maggie (Episode 33) |
| Ryoka Shima | Maria (Episode 33) |
| Megumi Toyoguchi | Manami Kurata (Episode 16 & 40) |
| Misato Fukuen | Sayaka (Episode 40) |
| Yuu Asakawa | Pamela (Episode 14) |
| Kenichi Suzumura | Dio (Episode 14 & 20) |
| Sanae Kobayashi | Rosetta's Agent (Episode 7) |
| Etsuko Kozakura | Usagi Cast (Episode 1) |