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The Ed Sullivan Show, a popular variety program that aired from 1948 to 1971, featured a wide range of performers, including comedians, singers, and dancers. One of the show's most memorable guests was Frank Gorshin, a talented impressionist and actor. Gorshin's appearances on The Ed Sullivan Show showcased his uncanny ability to mimic the voices and mannerisms of famous celebrities, such as Boris Karloff, Peter Lorre, and Groucho Marx.