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Jack Mendelsohn was an American writer-artist who worked in animation, comic strips and comic books. An Emmy-nominated television comedy writer and story editor, he had numerous credits as a TV scripter, including Rowan & Martin's Laugh-In, Three's Company, The Carol Burnett Show and Teenage Mutant Ninja Turtles. Among his work for feature films, he was a co-screenwriter of Yellow Submarine (1968). In 2004, the Animation Writers Caucus of the Writers Guild gave him a Lifetime Achievement Award.