As Mikkelsen told the , he spent the first part of production filming scenes by himself until actor María Thelma Smáradóttir showed up, playing a woman who barely survives a helicopter crash and is rescued by Mikkelsen's character.
Often when it comes to the villain, I think that the more we can persuade the audience to listen and make a fraction of what the character is saying make sense, the more interesting the character is to look at.
Thankfully, this Mikkelsen subreddit prank is wholesome, funny, and good-natured.
You gonna spend two years checking it out? As advised, "Pay close attention to the guy with the red kerchief.