She’s as shrewd and high functioning of a sociopath as he ever was.

Kate Beckett

I never forget a face, especially if I cut it.

Dr. Kelly Niemann

It's not just the murder he likes, it's the game.

Rick Castle

When I first got here I couldn't figure out what Beckett saw in you but you know what she said? He sees the story. I see the evidence, where it leads but he sees the story.

Capt. Gates

If I took you I'd only get to kill you once but this way I get to kill you over and over again.

Jerry Tyson

Ryan: Do you think she's still alive?
Castle: She's alive.
Ryan: How do you know?
Castle: Because he's not done with me yet.

(to Beckett) Despite the situation I want you to know that I admire you. I always have.

Dr. Kelly Niemann

And please don't scream. It's tedious and no one can hear you.

Dr. Kelly Niemann

All the games. All the manipulations. After I screwed up your plans you needed to know you were smarter than me. You needed to know you could control me.

Rick Castle

That's your story, Jerry. Why you did everything. You needed to prove it, so I let you.

Rick Castle

The truth is I lured you here to watch you die.

Rick Castle

Rick Castle: I don't know how you did it.
Kate Beckett: What?
Rick Castle: Kept it together the two months I was missing. Two days I didn't know where you were and it nearly killed me.

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