Guest Stars Georgia Hirst as Torvi Jennie Jacques as Judith Adam Copeland as Kjetill Flatnose Ferdia Walsh-Peelo as Alfred Ida Nielsen as Margrethe Josefin Asplund as Astrid Kelly Campbell as Ingvild Scott Graham as Frodi Darren Cahill as Aethelred Leah McNamara as Aud Ben Roe as Guthrum Kris Holden-Ried as Eyvind Jack McEvoy as Helgi the Lean Donna Dent as Rafarta Elijah Rowen as Asbjorn Frankie McCafferty as Sinric Mei Bignall as Thorunn Tallulah Belle Earley as Jorunn James Craze as Bul Rob Malone as Thorgrim Karima McAdams as Kassia Laurence O'Fuarain as Hakon Kal Naga as Ziyadat Allah