I told myself a while back, 'Love what you do, but don't fall in love with what you do.' That way you won't be brokenhearted if ever it gets canceled five episodes in - which has happened to me.

What draws me to roles, I think, are moments - moments that define character, where so much more of the story is told in just a moment - a look, a line, a short scene, but something that speaks a volume, something that speaks to me.

I had a Ford F-250. It was a big ol' farm truck, but it wasn't a rig. That's about the biggest I've ever driven. That's what I drove back and forth to high school. I was a poor guy, and it was a truck that my uncle owned and let me drive because I had no money.

Thank God there is a such thing as hiatus. We got the first 'Dr. Horrible' done in six days, we banged it out.

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'm constantly pitching one episode where we see life through Castle's eyes. I think Castle's just a little off as far as his perception goes. A very, very clever man, but I want to see the world as Castle sees it - kind of a rose-colored glasses, all the women find him irresistible, all the guys find him super cool and do whatever he says.

There's comedy even in tragedy. There's comedy in life. And in 'Castle', we go for that comedy.