| Refrain Blue (OVA)
|
| ???? (ep.1-3) | Konishi Katsuyuki |
| ???? (ep.1-3) | Kikuchi Yumi |
| Iwasaki Chinatsu (ep.1-3) | Ishikawa Shizuka |
| ??? Tsugumi (ep.1-3) | Adachi Mari |
| ???? (ep.1-3) | Asano Ruri |
| ??? (ep.1-3) | Uchikawa Ai |
| ???? (ep.1-2) | Asada Youko |
| ???? (ep.1-2) | Kishio Daisuke |
| Sensei (ep.1) | Dodo Asako |
| Male Student (ep.1-3) | Arai Takayuki |
| Female Student (ep.1-3) | AKIKO |
| Female Student (ep.1-3) | Koyama Kimiko |
| Male Student (ep.3) | Kishio Daisuke |
| Nazo no Shoujo (ep.1-3) | Sonozaki Mie |