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

Castle: How do you know when you're in love?
Beckett: All the songs make sense.

Back stabbing, adultery and betrayal. That is why I hate politics.

Kate Beckett