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Minami Takayama as Moomintroll (voice) |
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Ryūsei Nakao as Sniff (voice) |
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Rei Sakuma as Little My (voice) |
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Takehito Koyasu as Snufkin (voice) |
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Mika Kanai as Snorkmaiden (voice) |
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Akio Ōtsuka as Moominpappa (voice) |
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谷育子 as Moominmamma (voice) |
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平田康之 as Snork (voice) |
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Masato Yamanouchi as Muskrat (voice) |
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矢田稔 as Hemulen (voice) |
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Takaya Hashi as Police Inspector (voice) |
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Sumi Shimamoto as Fillyjonk (voice) |
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小林優子 as Mymble (voice) |
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Fumihiko Tachiki as Astronomer #1 (voice) |
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池田一臣 as Astronomer #2 (voice) |
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石野竜三 as Fubble (voice) |
| Directing | 斎藤博 | Director |
| Production | Kazuo Tabata | Producer |
| Writing | 宮崎晃 | Writer |
| Editing | 森田清次 | Editor |
| Camera | Hisao Shirai | Director of Photography |
| Writing | Tove Jansson | Novel |
| Production | 宮下勇治 | Producer |
| Sound | Sumio Shiratori | Original Music Composer |
| Production | 田村学 | Producer |
| Sound | 佐藤一俊 | Sound Effects |
