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Irwin Corey
"Professor" Irwin Corey (July 29, 1914 – February 6, 2017) was an American stand-up comic, film actor and activist, often billed as "The World's Foremost Authority". He introduced his unscripted, improvisational style of stand-up comedy at the San Francisco club the hungry i. Lenny Bruce described Corey as "one of the most brilliant comedians of all time."
Source: Wikipedia