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Keiko Toda as Hakofugu (Black spotted boxfish) |
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Amo Yuikawa as Himetatsu (Korean seahorse) |
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石田ひかり as Himetatsu'mother / Bluefin tuna / Japanese sardine |
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こばたけまさふみ as Great barracuda /Moray eel / Japanese sardine |
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岡野友佑 as Marbled rockfish / Japanese sardine |
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Hajime Sugimoto as Himetatsu's father |
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さかなクン as Whale shark |
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山口智充 as Asian sheepshead wrasse / Japanese sardine |
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笑福亭鶴瓶 as Common octopus |
| Directing | Takuya Inaba | Director |
| Directing | 佐藤広大 | Assistant Director |
| Sound | Haruna Karasuda | Music |
| Sound | 徳永義明 | Sound Designer |
| Sound | Hitomi Joko | Sound Mix Technician |
| Sound | Motohiro Mochizuki | Sound Mixer |
| Production | Karin Suhara | Production Manager |
| Production | Takeshi Wakui | Producer |
| Production | Ken Yanai | Producer |
| Production | Akiko Isobe | Producer |
| Production | Masaaki Kato | Executive Producer |
| Production | Hayato Ito | Executive Producer |
| Writing | Takuya Inaba | Writer |
| Visual Effects | Takuya Inaba | Character Designer |
