| Episode credited cast: |
 | Emiri Kato | - | Blossom / Momoko Akatsutsumi (voice) (as Emiri Katou) |
| Nami Miyahara | - | Bubbles / Miyako Gotokuji (voice) |
| Machiko Kawana | - | Buttercup / Kaoru Matsubara (voice) |
| Rest of cast listed alphabetically: |
 | Nicole Bouma | - | Blossom (voice) |
 | Louis Chirillo | - | Professor Utonium / Pithium (voice) |
| Masashi Ebara | - | Mojo Jojo (voice) |
 | Maryke Hendrikse | - | Bubbles (voice) |
 | Matt Hill | - | Poochi (voice) |
| Tomoko Kaneda | - | Peach (voice) |
| Yôko Kawanami | - | Miss Bellum (voice) |
| Taiten Kusunoki | - | Professor Utonium Kitazawa (voice) |
 | Kelly Metzger | - | Buttercup (voice) |
 | Ryûsei Nakao | - | Him (voice) |
 | Peter New | - | Mike Wilson / Dyno Mike (voice) |
 | Richard Newman | - | Dead Shepherd (voice) |
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