Season 4, Episode 21 Headhunters

First Aired: April 16, 2012

When things get tense with Beckett, Castle decides to team up with a new partner: a tough gang-unit detective who exposes him to a seedier side of police business and puts him in risky situations.

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Guest Cast

Adam Baldwin Det. Ethan Slaughter
Michael Dorn Dr. Carter Burke
Michael McGrady Brian Reilly

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  • Premiered: March 9, 2009
  • Rating: TV-PG
  • Premise: A murder-mystery writer and a homicide detective team up to solve unusual crimes in New York City, and their professional relationship soon crosses the line into romance. (more)

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