It sounds cliched, but superheroes can be lonely, vain, arrogant and proud. Often they overcome these human frailties for the greater good.

I think that is so interesting. It is le Carré. There must be so much of him when he was younger. He's an interesting character. I don't want to say the word "passive" because there is something very active about the way he is passive, if that makes any sense: the nature of his watching and his listening is active. It is always so alive because he is, essentially, a spy.

I did a production of 'Journey's End,' an RC Sherriff play about World War I, at the Edinburgh Festival. I was 18 and it was the first time that people I knew and loved and respected came up to me after the show and said, 'You know, you could really do this if you wanted to.'

I was so lucky because what I did in 'Thor' was I built the character from the ground up - the foundations of his spirit, really. He was someone who was born with an expectation that he would one day be a king, born with an entitlement.

For myself, for a long time... maybe I felt inauthentic or something, I felt like my voice wasn't worth hearing, and I think everyone's voice is worth hearing. So if you've got something to say, say it from the rooftops.

I feel as though the cardboard box of my own reality has been flattened and blown open. Now I can see the edge of the world.

Without revealing too much, there's a specific skill set you need to be in Loki's army - let me know if you have the qualifications.