It's a little strange, after all these years of working on camera, but once you start to watch the other people who do this a lot and realize how much of what you're doing has to just come through your voice, I found it really interesting.

To go from Jon Favreau for Iron Man 1 and 2 to Kenneth Branagh for Thor and the very different world of Thor, it's about how to adapt to Coulson in a different setting and a different world while, at the same time, still have him be a part of the same world.

I think about it, and I realize there's been some version of a Batman or Spiderman or Superman franchise since I was a boy, since before I was a boy.

Because I'm stern and scolding [the characters] sometimes, I'm sure I'll get a ton of grief.

All the PG-13 superhero movies are depriving me of the gore that I need.

Joss Whedon and all the writers of 'Iron Man' and 'Thor' found a way to keep Coulson saying something that keeps you guessing. I'm really lucky because a lot of people play agents and don't get nearly as much fun stuff to do.

What I love about Coulson is that he manages to do that and he manages to wrangle the diva superheroes, and really keep a sense of humor about it. And, you can tell that he really loves his job.