Guest Stars Jojo Macari as Mogwan Ayesha Antoine as Polly the Healer Beau Fowler as Tusk Warrior 1 Miles Yekinni as Bergerum Jun Hwang as Tusk Warrior 3 Co Starring Emily Coates as Sister Iris Billy Jenkins as Squirrel Sofia Oxenham as Eydis Clive Russell as Wroth the Tusk Commander Adaku Ononogbo as Kaze Ashley Bannerman as Cora (Faun Woman) Jóhannes Haukur Jóhannesson as Cumber the Ice King Sophie Harkness as Sister Celia Nikolaj Dencker Schmidt as Dof Youssef Kerkour as Pellam - Fisherman Natasha Culzac as Isma Bryony Miller as Brioni Clare Holman as Lady Cacher