Kate: Are you here to annoy me?
Castle: I'm here for the story.

Castle: That's too easy. The reader would never buy it.
Kate: This isn't one of your books, Castle. Out here, we find a guy standing over a body with a gun, he's usually the guy who did it.

Esposito: (about Castle) The man's got the Mayor on speed dial. The rich really are different.
Kate: You want him? He's yours.
Esposito: A control freak like you with something you can't control? No, no, that's gonna be more fun than Shark Week.

Kate: No signs of struggle. He knew her.
Lanie: Even bought her flowers. Who says romance is dead?
Kate: I do. Every Saturday night.
Lanie: A little lipstick wouldn't hurt.

(Castle asked Beckett for photos of the murders)
Castle: I'm not asking for the bodies. Just the pictures.

Whilst being held at gun point by Jonathan Tisdale-pilot)
Beckett: Castle, you ok?
Castle: Yeah, but this psycho here needs a breath mint.