Guest Stars Amalia Holm as Hrefna Pollyanna McIntosh as Queen Ælfgifu Leander Vyvey as Stígr Florian Munteanu as General Georgios Maniakes Set Sjöstrand as Magnus Olafsson Co Starring Christopher Rygh as Agnarr Kayode Akinyemi as Kaysan Aoibhínn McGinnity as Valgerda Taylor James as Batu Ciaran McMahon as Hámundr Jakob Femerling Andersen as Svein Eleanor McLynn as Dorn Jade O'Connor as Gunn Eóghain Francis Kiernan as Áki Sharon McCoy as Skögul Patrick Loftus as Kolr Luke Harmon as Harald Haraldsson Nikolai Kinski as Emperor Romanos Peter Claffey as Dunstan Horatio Hirst as Bishop Grimketel Margarita Grillis as Bekkhild Deirdre Donnelly as Elder Leader Kate Bratchyna as Katla Paul Ward as The Pope Christian Vit as Emir Cosimo Fusco as The Cardinal Laoise Sweeney as Hervör Ahd Tamimi as Saracen General Konstantinos Kavatiotis as Advisor to Maniakes Federico Pedroni as Vatican Priest Kevork Malikyan as Mehmet Paula LaFayette as Emir's Wife Ciaran Grace as Bosi Aaron Wade as Emir's Son
