Guest Stars Georgia Hirst as Torvi Jennie Jacques as Judith Ferdia Walsh-Peelo as Alfred Ida Nielsen as Margrethe Svea Killoran as Asa Scott Graham as Frodi Darren Cahill as Aethelred Ryan Henson as Hali Leah McNamara as Aud Róisín Murphy as Princess Elsewith Kris Holden-Ried as Eyvind Alicia Agneson as Freydis Jack McEvoy as Helgi the Lean Elijah Rowen as Asbjorn Mei Bignall as Thorunn Jonathan Delaney Tynan as Lord Cuthred Mark Lavery as Ivar's Male Slave Damien Devaney as Wilfred Matthew Ralli as Spy