88 mins | Animation, Family | April 18, 2008
88 mins | Animation, Family | April 18, 2008
| IMDb rating | 5.5 |
| Producers | Filmkompaniet |
| Original title | Muumi ja vaarallinen juhannus |
| Directors | |
| Writers | Tove Jansson |
as Narrator / Muumipappa (voice)
as Muumimamma (voice)
as Muumipeikko (voice)
as Niiskuneiti / Miska (voice)
as Nuuskamuikkunen (voice)
as Pikku Myy (voice)
as Homssu (voice)
as Puistovahti (voice)
as Mymmelin tytär / Vahdin serkku (voice)
as Vilijonkka / Emma (voice)