From 2009 to 2016, the titular protagonist battled crime in New York as an author alongside the police detective "Kate Beckett" (Stana Katic) and together they gained a large fan base.

Castle, which aired from 2009 to 2016, won over a legion of fans thanks to the dynamic between mystery writer Richard Castle, played by Nathan Fillion, and detective Kate Beckett, played by Stana ...

ABC’s Castle may have had a dramatic cancellation, but that hasn’t stopped fans from loving the show. The series is now streaming completely for free. Starring Nathan Fillion and Stana Katic, the ...