Season 8 saw a change in showrunners, with and Alexi Hawley taking over for David Amann. Their goal was to "shake things up" for a show they felt was becoming repetitive. This reinvention included: 'Castle' season 8 spoilers - The Hollywood Reporter
The eighth and final season of the ABC procedural drama Castle marked a significant turning point for the series, characterized by creative shifts, behind-the-scenes drama, and a polarizing central mystery. New Leadership and Creative Shakes Castle - Season 8