Taron Egerton Moomintroll Voice Matt Berry Moominpappa Voice Edvin Endre Snufkin Voice Bel Powley Little My Voice Akia Henry Snork Maiden Voice Rosamund Pike Moominmamma Voice Warwick Davis Sniff Voice Katie Leung Too-Ticky Voice Kate Winslet Mrs. Fillyjonk Voice Jennifer Saunders Mymble Voice Rebecca Root Misabel Voice Joe Wilkinson Male Hemulen Voice Susie Brann Female Hemulen Voice Mayumi Kawai Ninny Voice Alison Steadman Emma the Stage Rat Voice Richard Ayoade The Ghost Voice Will Self The Muskrat Voice Matt Lucas Teety-Woo Voice Steve Box Director Nick Ostler Writer Mark Huckerby Writer Josie Day Writer Marika Makaroff Executive Producer John Woolley Producer Louise Holmes Producer