It's really exhilarating and exciting to be able to meet your fan base and see them in person, and see the lengths that they're willing to go to.

That's the challenging thing with TV; it's not the action scenes per se, and it's not the location scenes and the heavy dialog scenes, but the fact that there is just no let-up; there is no break.

As actors, we have that in common that we go for slightly out-of-the-box or genre stuff. They're great when they work, but they don't always work. Genre stuff is really hard to pull off, as any fans of it know.

I turned up my nose at yoga for years. I was a rugby player growing up. But now I know. When I'm on those long international flights, like 22 hours from L.A. to Sydney, I'll get up sometimes and do yoga in the aisle just to stretch out a little bit.

I just watched the entire season of 'Louie' in one flight. What an amazing show.

I became an American citizen three years ago, and if I'd been arrested, maybe that wouldn't have happened. That was a very proud moment, by the way. I still have my Irish passport, but becoming an American citizen was important in terms of my family.

I called my family, saying, "Guess what? I got a new show. It's about a cop who travels in time." And they said, "I think we've seen that one."