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Detective Ethan Slaughter
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Adam Baldwin is seen here in the role of Detective Slaughter. Castle considers him as his partner on the episode "Headhunters."

Rating: 4.1 / 5.0 (7 Votes)

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    I hope they bring back Det Slaughter in season 5. It would be great to
    see him help Castle and Beckett get the bad guys.


    Ethan is a rumbuctious new character for 'Castle'. I hope TPTB find a way to bring him back. I wonder if there's a lady out there who could be his match and be a foil to the ongoing Castle/Beckett romance? That could be all kinds of fun! Not to omit that it was wonderful to see Adam and Nathan so evidently having fun together!