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Home Castle Episode 4.21 ‘Headhunters’ Promo Trailer

Castle Episode 4.21 ‘Headhunters’ Promo Trailer

BY Jennifer Griffin

Published 13 years ago

Castle Episode 4.21 'Headhunters' Promo Trailer

With tensions rising between Castle and Beckett, Castle finds himself a new partner — Detective Ethan Slaughter (guest star Adam Baldwin, “Firefly”), a tough and colorful cop from the city’s gang unit. But Castle gets more than he bargained for when Slaughter shows him a grittier side of police work that puts Castle in the line of fire like never before!

‘Headhunters’ airs Monday April 9 on ABC.

Castle Episode 4.21 'Headhunters' Promotional Photos, With Guest Star Adam Baldwin

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