There's another weight of us being in the public eye, which is this presumption that, because your work and your promotion work is very public, your private life should be, too.

The further you get away from yourself, the more challenging it is. Not to be in your comfort zone is great fun.

We're living through a time where we are fighting wars fostered by politics, admittedly not on the same scale as the First World War, but with equally tragic realities for our soldiers and their families.

I am also full of admiration for Chelsea Manning [formerly PFC Bradley Manning]. Regardless of which side of the argument you're on, he stood up for something he felt wasn't right. That was an extraordinarily brave thing to do, and I think he was unfairly punished for it. It's a really big deal what he did, and he did it for the betterment of all us, including the soldiers on the ground, as well as the civilians caught up in those conflicts.

You can perfect genius because genius is not perfection. On his level and his practice and his methodology, it's almost inhuman. So, that's been a fantastic arc to play, and boy does it go somewhere in this series.

I got live tweeted once by someone who was opposite my home in some rented accommodation. He was actually describing on twitter what I was doing. 'I took a shirt off, I went to the window, I put a shirt back on... ' And I've got blinds in my flat!

I'm not confident in social situations; just going up to someone in a bar and saying 'Hi' is going to be even more difficult because they won't know the real me. They will just know me as a fictional person I play on the screen.