Okay, all you lovers of mystery novels and fans of Castle, who really writes the Richard Castle books? I have searched far and wide, interviewed scores of people (well, really just a couple of coworkers), and have gotten no answers. Is it a male? A famous author? Is it one of the TV show's writers or producers? Some speculate that it is James Patterson, Michael Connelly, or the late Stephen Cannell. These authors have appeared on the show, so is that a subliminal hint of the ghostwriter's (or ghostwriters') true identity?