I kind of found a niche for myself after 'Firefly'. I found something that I enjoyed doing and that I did well, but as far as how I seek out a part, it's always different. It's always something that lights you on fire when you read it. It might be just one scene, it might be one line that defines the character for you.

In all my characters, I try to find an iota of myself, and in Castle, I found a lot. He gets away with a lot, so that's fun.

People keep inviting me back. It's nice to work with the same people when you've had a good time previously, and this is one of those cases.

I've got a full plate, yes I do. That iPod that's nice. A phone recorder? Nicely done. All right I'm a bit of a tech geek. I have a subscription to Popular Science and I keep up on all this stuff.

Somebody once said that you can never act and be another person; you're only acting facets of yourself. I think there's a lot of truth in that.

I think it's a dance that people want to see. It's a chemistry that people want to see. In the same way that people don't want to see a perfect hero with no flaws who can handle anything, people don't want to see a perfect relationship. There's nothing interesting about that. People want to see you fail.

Basically, after an ABC sitcom I did, I ended up with a holding deal with 20th Century Fox. Absolutely cool. It pays you to be unemployed. And the bigger the entity that gives you the deal, the better.