Richard Jay Potash was an American stage magician, actor, and writer. In a 1993 profile for The New Yorker, Mark Singer called Jay "perhaps the most gifted sleight of hand artist alive". In addition to sleight of hand, he was known for his card tricks, card throwing, memory feats, and stage patter. He also wrote extensively on magic and its history. His acting credits include The Prestige, The Spanish Prisoner, Mystery Men, Heist, Boogie Nights, Tomorrow Never Dies, Heartbreakers, State and Main, House of Games, Magnolia, and Deadwood. In 2015, he was the subject of an episode of PBS's American Masters, the only magician ever profiled in the series.