On the challenges of shooting in those conditions when the environment on-screen is supposed to be the opposite, Sam Corlett explained, "Often on this show, the challenges actually contribute to the expression of the characters. Whenever it's hard, it actually is a welcomed hardness for us to express the characters more truthfully."

Of course, with the amenities of the 21st century, even rough filming conditions are a significant step up from what actual Vikings lived through. Corlett added, "We haven't got much to complain about in terms of the life that we are living. We can say 'cut' and get a drink of water and warm up next to a heater. That didn't exist back in those times."

Most actors love a good challenge, and Corlett is no different. He reiterated, "Anytime there was a challenge on the physical side, it was certainly a welcomed challenge, whether it be to do with the water we were jumping in ..."