Katheryn Winnick
as Lagertha
Gustaf Skarsgård
as Floki
Alexander Ludwig
as Bjorn Ironside
Georgia Hirst
as Torvi
Alex Høgh Andersen
as Ivar the Boneless
Marco Ilsø
as Hvitserk
Jordan Patrick Smith
as Ubbe
Peter Franzén
as King Harald Finehair
Travis Fimmel
as Ragnar Lothbrok
Clive Standen
as Rollo
John Kavanagh
as The Seer
Moe Dunford
as Aethelwulf
Alyssa Sutherland
as Princess Aslaug
Linus Roache
as King Ecbert of Wessex and Mercia
George Blagden
as Athelstan
Jessalyn Gilsig
as Siggy
Jasper Pääkkönen
as Halfdan the Black
Ragga Ragnars
as Gunnhild
Jonathan Rhys Meyers
as Bishop Heahmund
Данила Козловский
as Prince Oleg of Novgorod
Eric Johnson
as Erik
Ben Robson
as Kalf
Donal Logue
as King Horik
Lothaire Bluteau
as Emperor Charles II of Frankia
David Lindström
as Sigurd Snake in the Eye
Ray Stevenson
as Othere
Gabriel Byrne
as Earl Haraldson
Kevin Durand
as Harbard the Wanderer