Guest Stars Kit Connor voices Pantalaimon Joe Tandberg voices Iorek Byrnison Cristela Alonzo voices Hester David Suchet voices Kaisa Jamie Wilkes as DI Walters Robert Emms as Thomas Mat Fraser as Raymond Van Gerrit Morfydd Clark as Sister Clara Geoff Bell as Jack Verhoeven Ray Fearon as Mr Hanway Tyler Howitt as Billy Costa Kate Rutter as Sister Betty Cameron King as Toby Pasi Antero Remsu as Samoyed Hunter