| Seiyuu | Role |
| Mai Nakahara | Mai Tokiha |
| Saeko Chiba | Natsuki Kuga |
| Ai Shimizu | Mikoto Minagi |
| Kiyomi Asai | Miyu Grear |
| Sakura Nogawa | Shiho Munakata |
| Toshihiko Seki | Reito Kanzaki |
| Yukari Tamura | Midori Sugiura |
| Tomokazu Seki | Yuuichi Tate |
| Akira Ishida | Nagi Homura |
| Akiko Kimura | Youko Sagisawa |
| Kikuko Inoue | Yukariko Sanada |
| Yuuji Ueda | Takeda (Episode 2, 4, 9, 11, 15, 17, 19) |
| Yuko Miyamura | Alyssa Searrs (Episode 9 - 15, 25, 26) |
| Shinichirou Miki | Ishigami-sensei |
| Akio Suyama | Sakomizu-sensei |
| Yukana Nogami | Fumi Himeno |
| Mamiko Noto | Yukino Kikukawa |
| Ryoko Shintani | Aoi Senou |
| Yuuka Nanri | Nao Yuuki |
| Yukana Nogami | Mashiro Kazahana |
| Mitsuki Saiga | Chie Harada |
| Naomi Shindou | Shizuru Fujino |
| Sanae Kobayashi | Akira Okuzaki |
| Ryoka Yuzuki | Haruka Suzushiro |
| Junko Iwao | Akane Higurashi |
| Eri Sendai | Kiyone Nonomiya (Episode 11 & 26) |
| Kazuma Horie | Kazu-kun (Episode 4, 5, 8, 26) |
| Naoya Uchida | John Smith (Episode 21 & 22) |
| Kinryu Arimoto | Joseph Grear (Episode 4, 8, 10 - 12, 14, 15) |
| Kimiko Koyama | Yayoi Ohta (Episode 5, 9, 14, 19) |
| Miki Nagasawa | Natsuki's Mother (Episode 9) |
| Yui Itsuki | Miya Suzuki (Episode 5, 9, 14) |
| Wataru Takagi | Shiho's Grandfather (Episode 6 & 13) |