I'm the one who often makes the 'Murder, She Wrote' reference, and ABC hates that, they don't want me to do that. And I say that having never actually watched 'Murder, She Wrote'. I think people have been trying to compare it to crime shows that are on right now, and all I can do is listen. I don't watch a lot of TV.

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.

I'm a plethora of stolen jokes and kitschy references.

What I know of Steve Trevor is everything that I learned from 'Wonder Woman,' the television series with Lynda Carter. And I don't remember much. I do remember his uniform, though.

My first Comic-Con was when I first met Joss Whedon: He introduced me to that world and I'd never been to a convention before that. He and a bunch of the 'Buffy' and 'Angel' writers were all going down in a big van and he invited me along.

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.

I love doing 'Castle.' We pump out 24 episodes in 10 months, and we work long hours. We do lots and lots of takes, and everyone there is a talent machine. It is a taxing endeavour to say the least, but when you get into a groove, it doesn't matter if you're tired, it doesn't matter if you're sick. You can do it.