I started building the character with Kenneth Branagh in Thor and we approached all characterisation in the same way – you have to start from a place of compassion, in that, no matter how evil and misguided and deluded the choices of a character are, in their own mind, they are the hero of their own story. And that is true of everyone – we are the lead protagonists in the movie versions of our lives. And the part that excites me about the job of acting is that it’s an exploration of human nature – there’s a psychological element to it. The part I love is that you are extending your understanding of human beings and examining truths that don’t belong to you. And if you look at the villains in human history, quite often they’ve been motivated by emotional damage. Tom Hiddleston (x)