Castle and Beckett interview a cosmetic surgeon connected to their case on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Annie Wersching guest stars as Dr. Kelly Nieman on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Beckett searches for a killer striking close to home on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Kate and Rick search for answers when a killer seems to be targeting the 12th precinct on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Kate Beckett is worried about her friends and colleagues when a killer targets the 12th precinct on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Are Rick and Kate at rish when a killer seems to target members of the 12th precinct on Castle. "Disciple" is the ninth episode of the show's sixth season.
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Castle Season 6 Episode 9 Quotes

They say we all have a twin out there somewhere. I guess this one's mine.

Lanie

Beckett: I was hoping for something more romantic and less Hobbity.
Castle: Why does everyone always think those two are mutually exclusive?