| Seiyuu | Role |
| Yuuko Sanpei | Renton |
| Kaori Nazuka | Eureka |
| Mayumi Asano | Hilda |
| Yasunori Matsumoto | Stoner |
| Yuichi Nagashima | Woz |
| Tomoyuki Shimura | Jobs |
| Fumie Mizusawa | Gidget |
| Mamoru Miyano | Moondoggie |
| Michiko Neya | Talho |
| Keiji Fujiwara | Holland |
| Kazuko Sugiyama | Tiptree |
| Juurouta Kosugi | Charles |
| Aya Hisakawa | Ray |
| Kenichi Ono | Morita |
| Yuriko Yamaguchi | Sonia |
| Rikiya Koyama | Norbu |
| Akiko Yajima | Sakuya |
| Yoko Soumi | Mischa |
| Fumie Mizusawa | Linck |
| Tamio Ohki | Ken-Goh |
| Takeshi Aono | Thurston |
| Kouji Tsujitani | Dewey |
| Ami Koshimizu | Anemone |
| Sakiko Tamagawa | Diane |
| Michiko Neya | Maurice |
| Eriko Kigawa | Maeter |
| Toshio Furukawa | William B. Baxter |
| Jun Fukuyama | Young Norbu (Episode 41) |