Cast ~
Akira Takaki
-Muumipeikko (voice)
Alma Pöysti
-Nuori Muumimamma / Mymmeli / Pikku Myy (voice)
André Wickström
-Hosuli / Nipsu / Haisuli (voice)
Jenna Hukkinen
-Niiskuneiti / Tahmatassu / Siili / Sosuli / Mymmelilapsi (voice)
Markus Bäckman
-Fredrikson / Muumipappa / Apulainen (voice)
Miiko Toiviainen
-Nuori Muumipappa (voice)
Nina Hedström
-Muumimamma / Hemulin täti (voice)
Stan Saanila
-Juksu / Edward / Itsevaltias / Hemuli / Nuuskamuikkunen (voice)
Prod. ~ Crew
Ira Carpelan
Directing (Director)
Ira Carpelan
Writing (Writer)
Małgorzata Więckowicz-Żyła
Writing (Writer)
Piotr Szczepanowicz
Writing (Writer)
Tom Carpelan
Production (Producer)
Ira Carpelan
Production (Producer)
Piotr Szczepanowicz
Production (Producer)
Zofia Jaroszuk
Production (Producer)
Tove Jansson
Writing (Novel)
Tove Jansson
Writing (Characters)
Grzegorz Wacławek
Production (Line Producer)
Grzegorz Wacławek
Production (Co-Producer)
Michał Fojcik
Sound (Sound Director)
Przemysław Chruścielewski
Editing (Editor)