Loki is a really damaged soul. On the one hand, there is his emotional volatility. He’s neither Asgardian nor Frost Giant - and he is entirely alone, and that makes for a very sad spirit. On the other hand, he’s someone who overtly delights in the chaos he creates. He’s an agent of mischief. There are two roads that I have to go down in my journey to play him: one is to excavate the depths of his spiritual pain, and the other is to try and find a place within myself that enjoys wreaking havoc.
~ Tom Hiddleston (The Art of Marvel’s The Avengers)