User blog comment:Dark Cyan/Cyan's Rap Battles of Literature 19: Michael Connelly vs John Connolly/@comment-5412428-20160204151530/@comment-5412428-20160204151851

Castle is a show that James Patterson, Michael Connelly, Stephen Cannel, and a few other authors help the script and produce and whatnot, and they all make guest appearances constantly as Castle's poker buddies and whatnot. >:(