In de afgelegen en mysterieuze Moominvallei leven de Moomins, zachtaardige en vredige wezens. De jonge Moomintroll en zijn familie beleven veel vreemde avonturen, zowel magisch als alledaags. Gebaseerd op de kinderverhalen van Tove Jansson.
| Writing | 桜井正明 | Series Composition |
| Production | Kazuo Tabata | Executive Producer |
| Camera | Sadafumi Sano | Director of Photography |
| Visual Effects | Kazuaki Moori | Animation Director |
| Directing | 神田武幸 | Series Director |
| Art | 中村隆 | Art Direction |
| Production | Kodaira Masao | Producer |
| Production | Mutsuo Shimizu | Producer |
| Production | Dennis Livson | Executive Producer |
| Sound | Sumio Shiratori | Music Director |
| Writing | Lars Jansson | Original Story |
| Writing | Tove Jansson | Original Story |
