Actor Nathan Fillion is back on Television
. @NathanFillion is back on our screens! See him TONIGHT on ABC's @therookie at 10|9c! pic.twitter.com/sFdQhFCrTE — Castle (@Castle_ABC) October 16, 2018 Actor Nathan Fillion is back on Television. Nathan Fillion's show "Castle" was canceled amid a real-life feud with the two lead actors Fillion and Stana Katic. “Castle” is a romantic crime show. Fillion played writer Richard Castle who follows police officer Kate Beckett (Stana Katic) and her team for inspiration for his novels. The last episode aired on March 16, 2016. Now Fillion stars in the new show "The Rookie". According to IMDB, the program is about a 40-year-old man who moves from a small town to Los Angeles to chase his dream of becoming a cop for the Los Angeles Police Department. "The Rookie" premieres Tuesday on ABC at 10/9 central.