I don;t know if any of you watch the show, but I'm a huge Nathan Fillion fan. The show isn't as great as it used to be, but I still watch. I have NO idea how the hell the show is going to work with her gone. Sorry, Castle fans. Weeks ahead of the Season 8 finale ABC has confirmed that co-star Stana Katic is officially exiting the series after the conclusion of the season. Katic plays Detective Kate Beckett, the dauntless NYPD police captain who has played opposite Nathan Fillion‘s titular novelist-turned-gumshoe since the pilot (and who married Castle in the sixth season). Katic’s exit is the main element of a major series shakeup that also includes the exit of actress Tamala Jones, another original castmember who plays medical examiner Lanie Parish. Last spring, both Katic and Fillion signed single-year contracts (which are up at the end of Season 8), and while Castle has not been confirmed for a 9th season, ABC has reportedly been in negotiations with Fillion to return for what will likely be shortened, 13-episode Season 9. Per Deadline, Katic was never approached to re-up her contract. Instead, ABC and ABC studios made the decision not to bring back Katic and Jones for budgetary reasons. Oh, she's kinda hot too.