Guest Stars Souad Faress as The Crone Nina Wadia as The Mother Dinita Gohill as The Maiden Arthur Darvill as Richard Madoc Derek Jacobi as Erasmus Fry Amita Suman as Nora Melissanthi Mahut as Calliope Kevin Harvey as Larry Co Starring Merch Husey as Josh Freddie Stewart as Elliot Jessica Murrain as Alisa Kirsty Rider as Emanuela Valmike Rampersad as Callum Hopi Grace as Lara Justina Kehinde as Sofia Fiona Marr as Erin Yasmeen Scott as Lottie