Alexander Dreymon Uhtred of Bebbanburg Actor David Dawson King Alfred Actor Ian Hart Beocca Actor Emily Cox Brida Actor Tobias Santelmann Ragnar Actor Gerard Kearns Halig Actor Alexandre Willaume Kjartan Actor Ole Christoffer Ertvaag Sven Actor Julia Bache-Wiig Thyra Actor Ola Rapace Bloodhair Actor Thea Sofie Loch Næss Skade Actor Timothy Innes Edward Actor Magnus Bruun Cnut Actor Eliza Butterworth Actor Joseph Millson Actor Millie Brady Actor Mark Rowley Actor Arnas Fedaravicius Actor Adrian Schiller Actor Ewan Mitchell Actor Cavan Clerkin Actor Gareth Neame Executive Producer Nigel Marchant Executive Producer Stephen Butchard Executive Producer