When Marvel put together Ultimate Spider-Man and someone came up with the idea of having Principal Coulson, they said, "Do you want to do the voice?" I thought, "I have to do the voice!" Because I have a daughter and we watch some cartoons, I couldn't bear the idea of tuning in and hearing somebody else's voice.

But what I've also really liked about it is that it not only has Marvel set about... if they just were slavishly trying to bring the comic books to life, literally, I don't the movies would work, because it's different to see something on screen in three dimensions with actors, and they kind of, I believe, are constantly trying to find a way to absolutely respect the source material and at the same time, transform it into something that works and that you believe on screen.

I thought there would be more time in my trailer to write during 'Agents Of S.H.I.E.L.D.,' but I seem to be always flying in a harness and conquering supervillains instead.

Sometimes you can do Shakespeare and you're still not an actor.

The hardest thing to get right is to figure out how to bring all those characters together, and to fulfill the promise of The Avengers. They really set a very high bar for themselves because you've been setting this coalition up, for these five movies, and they better deliver. And in my opinion, they thoroughly deliver.

I was a football player at college and dislocated my thumb. I was out for a bit and passed the theatre and saw some lovely drama students walking into an audition for 'Much Ado About Nothing' and thought: 'That's what I'll do when I recover.' I joined that production and was hooked.

There's always changes in the way they do that in the cinematic universe. I think, with the S.H.I.E.L.D. 2.0, you're seeing some of the first ripples of those different points of view on what S.H.I.E.L.D. should be when it's rebuilt. I'm very, very curious to know which side Coulson will end up on in that struggle.