Hola! On behalf of the NYPD, I'd like to welcome you to the world's greatest city!

Slaughter

I feel like he's cheating on us.

Ryan

Well done, Sherlock.

Slaughter

Never say awesome. You're a grown man.

Slaughter

I need a writer around as much as I need a case of crabs.

Slaughter

Am I packing? No, I'm not a cop! My vest says writer on it!

That was awesome! Beckett never drives on the sidewalk!

Forget severed heads, I want to meet that guy!

Martha: Playing with dolls, are we?
Castle: They are action figures.

Lift up my shirt, pull off my boots. Under normal circumstances, I'd like where this was heading.

Rick

She's fun and uncomplicated. I think that's what my life needs right now.

People change when you're not looking.

Beckett

Castle Season 4 Quotes

Every morning I bring you a cup of coffee, just so I can see a smile on your face. Because I think you are the most remarkable, maddening, challenging, frustrating, person I've ever met. And I love you Kate, and if that means anything to you, if you care about me at all, just don't do this.

Castle

So how's the case of "the phone sex girl who knew too much" going?

Martha