Guest Stars Nathan O'Toole as Bjorn Lothbrok David Pearse as Svein Vladimir Kulich as Eric Co Starring Tadhg Murphy as Arne Ruby O'Leary as Gyda Lothbrok Diarmaid Murtagh as Leif Carrie Crowley as Elisef Eric Higgins as Knut Jouko Ahola as Kauko Will Irvine as Brother Cenwulf Sam Doyle as Saxon 1 Sam Lucas Smith as Saxon 2 Gary Farrelly as Young Boy Kevin McCann as Man in Kattegat