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.

Rowan & Martin's Laugh-In is an American sketch comedy television program which ran for 140 episodes from January 22, 1968, to March 12, 1973, on the NBC television network, hosted by comedians Dan Rowan and Dick Martin. It originally aired as a one-time special on September 9, 1967, and was such a success that it was brought back as a series, replacing The Man from U.N.C.L.E. on Mondays at 8 pm (ET). It quickly became the most popular television show in the United States.