Missed seeing Fillion as a mystery novelist turned detective, and love the actor in 'The Rookie'? 'Castle' is now streaming ...

Actor Nathan Fillion had Stana ... kept Castle fans coming back to the series was Fillion’s relationship with Katic’s. The ...

EXCLUSIVE: We're also hearing that Nathan Fillion will be starring ... Murder,” Katic’s character, NYPD Captain Kate Beckett, is not happy about seeing her husband Richard Castle’s (Nathan ...