Guest Stars Arnas Fedaravičius as Sihtric Mark Rowley as Finan James Northcote as Aldhelm Cavan Clerkin as Father Pyrlig Ewan Mitchell as Osferth Adrian Schiller as Aethelhelm Jeppe Beck Laursen as Haesten Amelia Clarkson as Aelflaed Julia Bache-Wiig as Thyra Magnus Bruun as Cnut Tygo Gernandt as Jackdaw Simon Stenspil as Dagfinn Ed Birch as Sigebriht Klári Tolnai as Sidgeflaed Ciarán Owens as Tidman Rachel Bavidge as Fire Woman
