| Seiyuu | Role |
| Kaori Shimizu | Boogiepop |
| Yuu Asakawa | Nagi Kirima |
| Mayumi Asano | Boogiepop Phantom |
| Miwa Yasuda | Akane Kojima (Episode 5, 6, 9, 10, 12) |
| Noriaki Sugiyama | Tetsu Yabe |
| Mamiko Noto | Moto Tonomura |
| Sanae Kobayashi | Manaka Kisaragi |
| Hiroyuki Yoshino | Mamoru (Episode 7) |
| Fumiko Orikasa | Saki Yoshizawa (Episode 9) |
| Saeko Chiba | Yoko Sasaoka |
| Ayaka Saitou | Akane Phantom (Episode 9 & 10) |