Season 4
Season 3 culminated with the extraordinary battle in Paris, where Ragnar (Fimmel) seized victory from the jaws of defeat - but still returns to Kattegat dangerously ill.
Thoughts of his death galvanize the forces who seek to succeed him as king, including his wife Queen Aslaug (Alyssa Sutherland) and his oldest son, Bjorn (Alexander Ludwig).
Meanwhile, Lagertha (Katheryn Winnick) continues power struggles with her calculating, former second in command, Kalf (Ben Robson); Rollo (Clive Standen) betrays his Vikings heritage by remaining in Frankia and Floki (Gustaf Skarsgård) is seized for his brutal actions to the Christian priest Athelstan.
Joining the cast this season is Peter Franzén (The Gunman) as King Harold Finehair, a complex character who seeks to be King of Norway and a potential threat to Ragnar; Jasper Pääkkönen (Jet Trash) as Halfdan The Black, King Harold's violent younger brother; and Dianne Doan (Descendants) as Yidu, a completely different character within the world of the Vikings who fascinates Ragnar.
Other new starring cast this season include the sons of Ragnar - Alex Høgh as Ivar, Marco Ilsø as Hvitserk, David Lindström as Sigurd and Jordan Patrick Smith as Ubbe - as well as Moe Dunford as Aethelwulf and Jonathan Rhys Meyers as Bishop Heahmund.
Vikings is a family saga that tells the remarkable tales of the lives and epic adventures of the raiders and explorers of the Dark Ages.
Michael Hirst serves as executive producer along with Morgan O'Sullivan of World 2000 (The Count of Monte Cristo; The Tudors), Sheila Hockin (The Tudors, The Borgias), John Weber of Take 5 Productions (The Tudors, The Borgias), Sherry Marsh, Alan Gasmer and James Flynn (The Tudors, The Borgias).
Jana Bennett and Arturo Interian are the executives in charge of production for HISTORY.
Broadcast Notes
There are 20 episodes in Season 4, split into two halves of 10 episodes each.
On History in the USA, the first 10 episodes aired from 18 February to 21 April, 2016, on Thursdays at 22h00. Season 4 resumed with Episode 11 in a new timeslot on Wednesday 30 November 2016, at 21h00.
The first 10 episodes aired on M-Net Edge from 25 February to 28 April, 2016; Season 4 resumed with Episode 11 on Thursday 1 December, 2016.
All 20 episodes aired concurrently on M-Net City, initially on Tuesdays-Fridays at 23h00. Mondays at 23h30 was added to the run from Episode 6 (which aired on 26 June, 2017).