Kevin Ryan is married to Jenny O'Malley. He is a detective on Kate Beckett's team, and always jokingly teams up against her with Javier.

Kevin Ryan Quotes

Kate Beckett: You texted Castle and not me?
Kevin Ryan: Well, when you have a crazy theory you don't call the voice of reason.

Esposito: Who knew that Gates had a softer side?
Ryan: It's creepy. Very, very creepy.

Castle Quotes

Sometimes the hardest things in life are the things most worth doing.

Castle

Kate Beckett: You texted Castle and not me?
Kevin Ryan: Well, when you have a crazy theory you don't call the voice of reason.