John Max Thompson (July 27, 1934 – March 9, 2019) was an American comedian and Las Vegas illusionist who performed under the stage name The Great Tomsoni with his wife, Pamela Hayes. They had a comedic slapstick act with the well-dressed Thompson and his gum-popping assistant, Pam, performing illusions while enduring a series of mishaps. Within the magician community, Tomsoni was considered a virtuoso, widely known as a mentor and teacher of magic, and a creator of tricks, as opposed to simply a performer. He worked behind the scenes with magicians such as Penn and Teller, Lance Burton, Criss Angel and Mat Franco. In 1999, he was awarded one of the highest honors in the magician community, a Masters Fellowship with the Academy of Magical Arts. January 30th, 2020, Showtime released a documentary about Thompson written and directed by Emery Emery called Gambler's Ballad: The Legend of Johnny Thompson.