Guest Stars David Murray as Aethelwulf Ivan Kaye as King Aelle of Northumbria Nathan O'Toole as Bjorn Lothbrok Co Starring Maude Hirst as Helga Jefferson Hall as Torstein Tadhg Murphy as Arne Diarmaid Murtagh as Leif Elinor Crawley as Thyri Haraldson Cathy White as Ealswith Gary Murphy as Bishop Unwan Peter Gaynor as Lord Edgar Angus MacInnes as Tostig Deirdre Mullins as Peasant Woman Jonathan Ryan as Noble 3 Andy Kellegher as Saxon Warrior #1 Michael James Ford as Noble 2 Alexander Downes as Noble 5 Cillian O'Gairbhi as Saxon Warrior #2 Tristan McConnell as Saxon Warrior Sean Tracy as Egbert James Flynn as Lord Eadric Matt Ryan as Peasant Man