Nathan Fillion Cops Brooklyn Nine-Nine Role, Playing a Fictional TV Detective

Nathan Fillion is getting meta with his next TV gig. The Castle vet will guest-star on Fox’s Brooklyn Nine-Nine as Mark Devereaux, the star of a Law & Order-type series titled Serve & Protect, EW.com reports. Mark thinks playing a detective on TV makes him qualified to help Jake (Andy Samberg) and Rosa (Stephanie Beatriz) […]