Nathan Fillion once opened up about what it was like dealing with fans of his shows like ‘Castle’ and ‘Firefly’.

Castle’s series finale was the best showrunner Alexi Hawley could do after being somewhat blindsided by the procedural’s cancellation. The ending Hawley shot, showing Fillion’s Rick Castle ...

Actor Nathan Fillion’s hit television series Castle enjoyed an eight-season run before its divisive series finale. A couple of years before the show’s last air date, however, Fillion revealed ...

Nathan Fillion gives the perfect reason why The Rookie is an NCIS rival — straightforward, fresh energy, and his trademark ...

Nathan Fillion is the current star of the hit LAPD show, The Rookie, in which he plays John Nolan. The Canadian-American actor was the title character in the 2009 ABC show, Castle, and has a ...

Castle star Nathan Fillion sat down with Larry King about his love of comic books and being the voice of the Green Lantern. “When you come to my house, in the umbrella stand, are a couple of ...

The talk show host revealed that seeing Nathan Fillion on set made her even more nervous because she'd been a fan of his since "Castle." ...

Season 7 of the cop drama premieres Jan. 7 on ABC. Jenna Dewan, Nathan Fillion and Eric Winter chat with ET’s Deidre Behar about ‘The Rookie’ season 7, which premieres Tuesday on ABC.