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
Piotr Szczepanowicz
Production (Producer)
Ira Carpelan
Directing (Director)
Tom Carpelan
Production (Producer)
Ira Carpelan
Production (Producer)
Małgorzata Więckowicz-Żyła
Writing (Writer)
Zofia Jaroszuk
Production (Producer)
Piotr Szczepanowicz
Writing (Writer)
Ira Carpelan
Writing (Writer)
Tove Jansson
Writing (Novel)
Tove Jansson
Writing (Characters)
Grzegorz Wacławek
Production (Co-Producer)
Grzegorz Wacławek
Production (Line Producer)
Michał Fojcik
Sound (Sound Director)
Przemysław Chruścielewski
Editing (Editor)