If there's one thing that "Vikings" star Alexander Ludwig want to do when the series ends, it is shaving the hair off from his head.

"This is coming off. I am so sick of it," he said referring to the hair-on-top-shaved-sides cut that he sported for four seasons in "Vikings" for his role as Bjorn Ironside, son of Ragnar Lothbrok.

But he pointed out that shaving off his hair is a minor complaint compared to the bigger picture. A history buff, the 24-year-old has been biding his time on the series with the knowledge that Bjorn will have a pretty sweet future ahead of him beyond being his father's son.

At the midway point of Vikings Season 4, Ragnar Lothbrok lost his battle for Paris against his brother Rollo. The series then jumped ahead several years in the future, towards the return of a long-lost Ragnar, along with various sons in the process of becoming kingly, most notably Bjorn.

Fans are excited that Bjorn is going to become the character that they have long been waiting for.

"I did my research. This is what I spoke about to Michael Hirst, and the kind of the season I was promised when I first signed for the show," he said.

Hirst immediately hired Ludwig right after "The Hunger Games," where he played Cato, who fought Katniss in the movie's climax.

Along with knowing the historical relevance of Vikings, Ludwig also talked about Bjorn's desire to settle to new lands in the Mediterranean, which would require him to come to terms with his father's enemy, Rollo.

With all things being said, Season 4 of Vikings will, no doubt, be as epic as it is.