Castle fans were devastated back in 2016 after ... plans to continue to the show without one of the co-leads, Stana Katic.

Castle's legacy is somewhat ... When there was still the possibility of Season 9, only Nathan Fillion was reportedly invited ...

Nathan Fillion and Stana Katic reportedly despised each other during their time on Castle, despite their close ... in her pay ...

The show is rounding out its cast with stars including James Cromwell (Succession) and Stana Katic (Castle). Mya Lowe, ...