02:18 — Ragnar falls deeper into his addiction to Eastern medicine in this scene from Season 4 Episode 7, "The Profit and the Loss."
01:50 — Scholars and historians discuss the weapons favored by the Vikings and how they influenced Viking battles.
02:29 — Scholars and historians describe what items were necessary and valuable to Viking traders.
01:59 — Did Ragnar Lothbrok actually exist? Scholars and historians explain what we know about the man - or men - who inspired the character.
Watch highlights from Season 4 Episode 5, “Promised," in this web exclusive.
01:21 — Bjorn fights for his life in the Viking wilderness in this scene from Season 4 Episode 3, “Mercy."
Rollo helps the French with a military strategy to defeat the Vikings' ships in this scene from Season 4 Episode 2, "Kill the Queen."
02:02 — Find out what you can expect from Vikings: Season 4.
Hit drama series "Vikings" returns for a gripping fourth season.
Clive Standen joins HuffPost Live to talk about working on the show 'Vikings' and what helps make a fight scene look good.
- Birth Place: Holywood, County Down, Northern Ireland
- Birthday: July 22, 1981, Cancer
- Profession: Actor
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Rollo's marriage to Gisla is hitting more than its fair share of bumps