Nathan Fillion once opened up about what it might take for ‘Castle’ to end in a way where it maintained its integrity.

Nathan Fillion has assumed a rare space in fandom ... He was so indelibly likable in these varied roles that comic book readers began fan-casting him as any hero with a rakish charm.

Nathan Fillion’s soap opera series ‘One Life to Live’ showed that they always kept the actor in mind by giving ‘Castle’ a special shout-out.

Officer John Nolan (Nathan Fillion) knows being the Rookie is anything but easy. In PEOPLE’s exclusive first look at teaser for the upcoming seventh season of the hit ABC series, Nolan is ...

The Rookie is finally back for Season 7. Here's everything to know about when and where to watch new episodes.