Directed by
| Maria Lindberg | ||
Writing Credits
| Iivo Baric | ... | (script) & |
| Minna Karvonen | ... | (script) & |
| Rosa Aaltonen | ... | (English adaptation) & |
| Kathleen Fee | ... | (English adaptation) & |
| Maria Kossakowska | ... | (script) & |
| Lucjan Dembinski | ... | (script) (as Lucjan Dembiński) & |
| Tove Jansson | ... | (based on the book Moominsummer Madness) |
Cast (in credits order) complete, awaiting verification
| Richard M Dumont | ... | Storyteller (US) (voice) (as Richard M. Dumont) | |
| Mark Camacho | ... | Moominpappa (US) (voice) | |
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Kathleen Fee | ... | Moominmamma (US) (voice) |
| Tod Fennell | ... | Moomintroll (US) (voice) | |
| Holly Gauthier-Frankel | ... | Snork Maiden (US) / Whomper (US) (voice) | |
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Sonja Ball | ... | Little My (US) / Small Hemulen (US) (voice) |
| Arthur Holden | ... | Snufkin (US) (voice) | |
| Pierre Lenoir | ... | Park Keeper (US) (voice) | |
| Kim Bubbs | ... | Fillyjonk (US) (voice) | |
| Susan Glover | ... | Emma (US) (voice) | |
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Pauline Little | ... | Misabel (US) (voice) |
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Julie Burroughs | ... | Mymble's Daughter (US) (voice) |
| Rest of cast listed alphabetically: | |||
| Outi Alanen | ... | Pikku Myy (voice) | |
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Stig Hoffmeyer | ... | Fortæller (voice) |
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Vuokko Hovatta | ... | (voice) |
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Jarmo Koski | ... | (voice) |
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Ilpo Mikkonen | ... | (voice) |
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Taneli Mäkelä | ... | Nuuskamuikkunen (voice) |
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Tapani Perttu | ... | Muumipappa / Kertoja (voice) |
| Jasper Pääkkönen | ... | Muumipeikko (voice) | |
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Leena Rapola | ... | (voice) |
| Elsa Saisio | ... | Niiskuneiti (voice) | |
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Johanna Viksten | ... | Muumimamma (voice) |
Produced by
| Tom Carpelan | ... | producer |
Music by
| Andrzej Rokicki | ||
Editing by
| Maria Lindberg | ... | (editing) |
| Barbara Sarnocinska | ... | (as Barbara Sarnocińska) (editing) |
| Henryka Sitek | ... | (editing) |
Second Unit Director or Assistant Director
| Iivo Baric | ... | assistant director |
| Wieslawa Buczek | ... | assistant director (as Wiesława Buczek) |
Art Department
| Bogdan Chudzynski | ... | design (as Bogdan Chudzyński) |
| Maria Lindberg | ... | title design |
Sound Department
| Asko Ahonen | ... | sound design and editing |
| John Bolanaks | ... | English recording (as John Bolanakis) |
| Mieczyslaw Janik | ... | sound (as Mieczysław Janik) |
| Pierre Michaud | ... | English recording |
| Ewa Stanczuk | ... | sound (as Ewa Stańczuk) |
Visual Effects by
| Tommi Tikka | ... | title production (as Tommi Tikka/Junocor) |
Camera and Electrical Department
| Waclaw Fedak | ... | camera (as Wacław Fedak) |
| Slawomir Swiatek | ... | camera assistant (as Sławomir Światek) |
| Jadwiga Zauder | ... | camera |
Animation Department
| Ewa Bankowska | ... | animation (as Ewa Bańkowska) |
| Wieslawa Buczek | ... | animation (as Wiesława Buczek) |
| Janina Dychto | ... | animation |
| Barbara Dyhdalewicz | ... | animation |
| Jadwiga Kudrzycka | ... | direction |
| Krystyna Kulczycka | ... | direction |
| Ewa Przyjemska | ... | animation |
Additional Crew
| Kathleen Fee | ... | English talent direction |
| Annariikka Kyllönen | ... | production assistant |
| Tadeusz Strak | ... | production planning (as Tadeusz Strąk) |
| Ada Stronias | ... | production planning |
| Claire Viroulaud | ... | press attache france (uncredited) |
