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Looking to watch Castle Season 6 Episode 4 online? TV Fanatic is your destination for every paid and free streaming option of the Castle S6E4 full episode from 2 affiliates.

Rating: 4.1 / 5.0 (300 Votes)

Episode Details

Castle Season 6 Episode 4: "Number One Fan"

On Castle, a woman accused of murder takes hostages and insists she'll only speak with one person. Rick Castle.

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Castle Season 6 Episode 4 Quotes

Kate: I might as well apply to become a mall cop.
Castle: Ooh, you would look great on a Segway.

I don't know what to do about my life.

Kate
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