while Nathan Fillion and other main cast members signed on for one more season. Also interesting: The problem would have been that 'Castle' was largely focused on the relationship between "Richard ...

With The Rookie, Nathan Fillion headlines his third TV successful TV show after Firefly and Castle, and is in no mood to stop ...

Nathan Fillion has been working on screen for over ... Nathan – who has also appeared in Buffy The Vampire Slayer and Castle – revealed that "there have been one or two times we've been ...