Castle and Beckett interrogate a cult leader in this clip from "Swan Song." He is played by C. Thomas Howell.
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The victim on "Swan Song" grew up in a cult. Castle and company follow the clues from there in this sneak peek.
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Castle and Lanie play to the camera in this hilarious clip from "Swan Song." A documentary is following around their every move.
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Musicians buying drugs? Castle thinks he's on to something in this clip from "Swan Song."
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We go behind the music on this episode of Castle. It looks like an especially fun one.
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Beckett and Castle interview a science fiction actor in this fun clip from "The Final Frontier." He takes his role very seriously.
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Beckett has a Nebula 9 outfit?!? Castle learns a major secret about his partner/lover in this fun clip.
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Castle and Beckett interrogate a weapons expert in this "Final Frontier" clip. A fake weapons expert, that is.
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Castle Quotes

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

Castle

The moment we met my life became extraordinary. You taught me more about myself than I knew there was to learn. You are the joy in my heart. You are the last person I want to see every night before I close my eyes. I love you Katherine Beckett and the mystery of you is the one I want to spend the rest of my life exploring. I promise to love you, to be your friend and your partner in crime and life till death do us part and for the time of our lives.

Rick Castle