Legendary comedian Don Rickles has passed away at the age of 90. According to his rep, Rickles passed away from kidney failure at his Los Angeles home. Best known for his curmudgeonly on-stage persona and eagerness to roast members of his own audience, Rickles was a mainstay in the comedy nightclub circuit, often appearing at clubs in Las Vegas and, later in his career, famously voiced Mr. Potato Head in the Toy Story film series.
