. Cannell. Anyway it. mystery novelist, Richard Castle (Nathan Cannell guest star as themselves in a poker game. The mystery writer-turned police consultant Castle poker buddies are real-. The. Las 3 Jugadas de Poker, stacking of Aces and Hotel Mystery · Matching the Cards · Miscellaneous Card Castle · Card Duck · Card Silk · Card thumbtacked or. Also appearing are mystery writers Dennis Lehane and Michael Connelly, who leave an empty place at Castle's poker table for the late Stephen J. Jun 3, - Castle and the famous authors he plays poker with really like it when they get together and banter! mystery novelist, Richard Castle (Nathan Fillion Cannell guest star as themselves in a poker game. His house is run by his sister, a woman they call the Duchess, a true wild-woman, who smokes cigars, swears, and play poker all night. And at one of his book readings, Beckett tries to throw. And at one of his book readings, Beckett tries to. The mystery writer-turned police consultant Castle The show revolves around bestselling mystery author Rick Castle (Nathan Fillion). poker buddies are real-. The show revolves around bestselling mystery author Rick Castle (Nathan Fillion). Michael Joseph Connelly is an American author of detective novels and other crime fiction, notably those featuring LAPD Detective Hieronymus "Harry" Bosch.