Beckett: That's espionage.
Castle: More like sexpionage.

Beckett: Castle, if we were getting married, would you want to know about all of the men I've been with?
Castle: ALL sounds like a lot.

Ryan, why don't you take The Situation down to the bar?


Beckett: Oh my God, that's Jenny!
Castle: Not just Jenny. Gyrating Jenny.

I'm not showing up solo when Lanie's bringing Captain America!


Looks like Castle isn't too far off with his Jason Bourne theory.


Castle: If you find out a man is cheating on you, how would you kill him?
Martha: Knife.
Alexis: Shoot him.

It's like the beginning of The Bachelor, but without the appletinis.

Speaking of sweet...who's your date to Ryan's wedding?

I know, we're nauseating.


Castle: I always liked your legs, but now I respect them.
Beckett: Yours aren't so bad either. For the next police picnic, we should enter the three legged race.

If we ever get out of here, we should seriously consider joining the circus.

Castle Season 4 Quotes

I ain't afraid of no ghost!


You? Skepticus Maximus?