Alexis Castle is Rick's teenage daughter from his first marriage. She is very grown up for her age and Rick sometimes will even ask for her opinions on killers motivations.

Alexis Castle Quotes

You think I'm catnip for the predators of the world.

Alexis

How can you be so smart and so clueless at the same time?

Alexis
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Castle Quotes

Castle: I was just coming to see you.
Beckett: I was just coming to see you!

Castle: They're going to kill you Kate, and if you don't care about that, please think about how that's going to affect the people who love you. You really want to put your dad through that? What about Josh?
Beckett: And what about you Rick?
Castle: Well of course I don't want anything to happen to you. I'm your partner, I'm your friend.
Beckett: Is that what we are?
Castle: You know what? I don't know what we are. We kiss and then we never talk about it. We nearly die frozen in each others arms, but we never talk about it. So no, I got no clue what we are. I know I don't want to see you throw your life away.