Guest Stars Arnas Fedaravicius as Sihtric Mark Rowley as Finan James Northcote as Aldhelm Ewan Mitchell as Osferth Jeppe Beck Laursen as Haesten Adrian Bouchet as Steapa Amelia Clarkson as Aelflaed Finn Elliot as Young Uhtred Marcell Zsolt Halmy as Aelfweard Tygo Gernandt as Jackdaw Debbie Chazen as Sable Anthony Cozens as Aidan Gabriel Harland as Young Cnut Tristan Harland as Esgar Nicholas Asbury as Brother Iestyn Richard Heap as Brother Oswi Dorka Gáspárfalvi as Dane Daughter Mihály Hajagos as Uhtred's Servant