| Boogiepop?/ ... (unknown episodes) | 清水香里
 | |
| Nagi Kirima (unknown episodes) | 浅川悠
 | |
| Shinpei Kuroda (unknown episodes) | Kazuo Konta | |
| Masami Saotome (unknown episodes) | 福山润
 | |
| Minako Yurihawa (unknown episodes) | 浅野真由美
 | |
| Rie Sato Arisa Nishi Professor (unknown episodes) | Roxanne Beck | |
| Mamoru Oikawa (unknown episodes) | Steve Bednarz | |
| Kazuko Suema Additional Voices (unknown episodes) | Anne Benkovitz | |
| Rie Takai Girl Atsuko Abe (unknown episodes) | Mandy Bonhomme | |
| Officer Morita (unknown episodes) | David Brimmer | |
| Yoko Sasaoka (unknown episodes) | Kelli Shayne Butler | |
| Moto Tonomura Poom Poom Saki's Mother Shiokaze Umino (unknown episodes) | Jessica Calvello | |
| Y?ko Sasaoka (unknown episodes) | 千叶纱子
 | |
| Kishida Ichir??/ ... (unknown episodes) | Wasei Chikada | |
| Tatsuro (unknown episodes) | Joe DiGiorgi | |
| Morita?/ ... (unknown episodes) | 江川央生
 | |
| Sachiko Wakasa (unknown episodes) | Meg Frances | |
| Manticore Masami Saotome (unknown episodes) | Crispin Freeman | |
| Additional Voices (unknown episodes) | Amanda Goodman | |
| Minako Yurihawa (unknown episodes) | Simone Grant | |
