Guest Stars Amalia Holm as Hrefna Sofia Lebedeva as Elena Leander Vyvey as Stígr Florian Munteanu as General Georgios Maniakes John Kavanagh as The Seer Co Starring Christopher Rygh as Agnarr Aoibhínn McGinnity as Valgerda Kayode Akinyemi as Kaysan Taylor James as Batu Eleanor McLynn as Dorn Ciaran McMahon as Hámundr Jade O'Connor as Gunn Henessi Schmidt as Gytha Eóghain Francis Kiernan as Áki Sharon McCoy as Skögul Pyry Kähkönen as Harald Harefoot Henry Proctor as Alfred Cal O'Driscoll as Edward Luke Harmon as Harald Haraldsson Nikolai Kinski as Emperor Romanos Huey O'Meara as Harthacanute Jack Hickey as Richard of Normandy Christopher Sciueref as Patriarch Ely Solan as William James Collins as Harold Cooper Murray as Tostig Nisrine Adam as Arabic Speaking Woman Keith McErlean as Walter Senan Jennings as William (8 Years Old) Enda Oates as Osbern
