| Episode credited cast: |
 | Ryosuke Sakamoto | - | Shirô Gô / Red One |
| Naoto Tada | - | Shingo Takasugi / Green Two |
| Akito Osuga | - | Ryuta Nambara / Blue Three |
| Sumiko Tanaka | - | Jun Yabuki / Yellow Four II |
| Michiko Makino | - | Hikaru Katsuragi / Pink Five |
| Tadao Nakamaru | - | Dr. Shibata |
| Yoshiko Ohta | - | Peebo (voice) |
| Munemaru Kôda | - | Hideo Kageyama / Doctor-Man |
| Hirohisa Nakata | - | Mason |
| Yûko Asuka | - | Farrah |
 | Yukari Ôshima | - | Farrah-Cat |
| Strong Kongô | - | Monster |
| Rest of cast listed alphabetically: |
| Ichirô Murakoshi | - | Narrator |
| Shun Yashiro | - | Messer Beast |
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