Michael Hirst previews the strong women of season 3. Vikings season 3 will showcase a host of new strong female characters. Bjorn Proposes To Porunn In 'Vikings' Premiere Sneak Peek, Will She Say Yes? Lagertha (Katheryn Winnick) has become an icon for women the world over, and series creator Michael Hirst is planning on expanding the roles of Kattegrate's shieldmaidens - particularly Siggy (Jessalyn Gilsig), Aslaug (Alyssa Sutherland) and Lagertha.