Hanna Hemilä Director, Screenwriter, Producer Xavier Picard Director, Screenwriter, Producer Maria Sid Muumimamma Voice Mats Långbacka Muumipappa Voice Kristofer Gummerus Muumi Voice Alma Pöysti Niiskuneiti Voice Ragni Grönblom Pikku Myy Voice Carl-Kristian Rundman Markiisi Mongaga Voice Irina Björklund Audrey Glamour Voice Christoffer Strandberg Clark Voice Leslie Stewart Screenwriter Annina Enckell Screenwriter Beata Harju Screenwriter Thomas Belair Film Editing Rodolphe Ploquin Film Editing