Series 4 - Episode 21 Headhunters



The author shadows violent homicide detective Ethan Slaughter while Beckett is busy preparing for a trial. Castle finds himself fascinated by his new partner's uncompromising approach while investigating what appears to be a gang-related killing - but Slaughter's heavy-handed methods put both their lives in danger. Guest starring Adam Baldwin.

Cast & Crew

Richard Castle Nathan Fillion
Det Kate Beckett Stana Katic
Martha Rodgers Susan Sullivan
Javier Esposito Jon Huertas
Alexis Castle Molly C Quinn
Kevin Ryan Seamus Dever
Lanie Parish Tamala Jones
Capt Victoria Gates Penny Johnson Jerald
Ethan Slaughter Adam Baldwin
Dr Carter Burke Michael Dorn
Brian Reilly Michael McGrady
Cesar Valles Reynaldo Gallegos
Laura Wilson Anna Zielinski
Det Marc Gibson Christopher Rivera
Maxi Clifford McGee
Gilberto Mendoza Mario Ardila Jr
Shea Stefan Niemczyk
Director John Terlesky
Writer Alexi Hawley
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