| Seiyuu | Role |
| Romi Paku | Nana Osaki |
| Kaori | Nana Komatsu |
| Hidenobu Kiuchi | Ren Honjou |
| Tomokazu Seki | Nobuo Terashima |
| Yoshihisa Kawahara | Yasushi Takagi |
| Akira Ishida | Shinichi Okazaki |
| Toshiyuki Morikawa | Takumi Ichinose |
| Aya Hirano | Reira Serizawa |
| Mika Kanai | Misato Uehara |
| Junichi Suwabe | Kyousuke Takakura |
| Takako Honda | Junko Saotome |
| Hiroki Takahashi | Shouji Endou |
| Anri Katsu | Naoki Fijieda |
| Megumi Kojima | Sachiko Kawamura |
| Fumihiko Tachiki | Ginpei |
| Akiko Hiramatsu | Nana Komatsu's Mother (Episode 12 , 17 - 19) |
| Emi Shinohara | Sakagami (Episode 13, 16, 19, 20) |
| Yasuhiro Takato | Takeda (Episode 18, 22, 26, 27, 34) |
| Kazuo Hayashi | Kawano (Episode 23, 26, 29, 31) |
| Kenichi Ogata | Andou (Episode 1, 6, 7) |
| Jin Horikawa | Yokoi (Episode 1, 6, 7) |
| Hideyuki Tanaka | Takashi Asano (Episode 2 & 3) |
| Akiko Kimura | Virtual Sachiko (Episode 7) |
| Kenji Hamada | Mizukoshi (Episode 8, 9, 11) |
| Eiji Miyashita | Nakamura |
| Yuko Satou | Yamada (Episode 10) |
| Masaya Onosaka | Matsuda (Episode 12) |
| Youji Ueda | Nobu (Episode 15) |
| Akemi Okamura | Nao (Episode 17) |
| Unsho Ishizuka | Nana Komatsu's Father (Episode 18) |
| Kazuhiro Nakata | Okazaki (Episode 29) |
| Kazuki Yao | Matsuo (Episode 31) |
| Megumi Toyoguchi | Mari (Episode 34 & 35) |
| Masahiko Tanaka | Kudou (Episode 35) |
| Susumu Chiba | Kurata (Episode 35) |