Television News 'Castle' stars Nathan Fillion and Stana Katic address show's cancellation 05/13/2016 Nathan Fillion and Stana Katic are saying goodbye to ABC series "Castle." Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Stana Katic Nathan Fillion Castle
