Agent Shaw: Castle. Thank you for your help. You are a valuable asset to Detective Beckett's team.
Castle: Well, it would be great if you would call her and remind her of that from time to time.

Castle: Did you just use the word "veritable" in a sentence?
Beckett: Yes, I did.
Castle: Sexy!
Beckett: You should hear me say "fallacious."

Beckett: You're such a metrosexual.
Castle: Yeah, well, better than being a pin-up boy.
Beckett: So you heard? And it's man, Castle. Pin-up man.

Castle: What was that for?
Alexis: For being the best dad ever.
Castle: It's true, you know. I have the novelty mug to prove it.

Beckett: Why would a respected prosecutor become a pimp?
Castle: The outfits.

Castle: So how do we find Danton?
Beckett: We talk to one of the call girls. (to Cho) Call that number and tell him to bring one of his girls over.
Castle: And tell her to wear something sexy.

Beckett: You've got quite a record, Mr. Knox.
Castle: Your parents must be proud.
Knox: Yeah, they hang all my mug shots on the fridge.

Love a good perp walk.

Alexis: Looking good, Grams! A date?
Martha: Dining and dancing with Chet Palaburn.
Castle: What if he turns out to be bloated and ugly?
Martha: Oh! How superficial do you think I am?
Castle: Intensely.

Castle: Who's Chet Palaburn?
Martha: Star athlete. Class president. Homecoming king. My high school sweetheart. And my first.
Castle: I really didn't need to know that last one.

Castle: What are you ladies doing?
Martha: Alexis is assisting me in creating a MyFace account.
Castle: I think you mean--
Alexis: Save your breath. I've been correcting her the whole morning.

This guys' got contingency plans for his contingency plans, its like we're battling a super villain.

Castle Quotes

I need time to stop being mad and you need time to figure out a way to be OK with this.

Alexis

I tried to stay in the car I really did.

Castle