William Pierson
William Pierson (July 17, 1926 – August 27, 2004) was an American television, motion picture and stage actor, best known for his raspy voice and his role as Marko the Mailman in the 1953 film ''Stalag 17'' as well as a recurring role as Dean Travers on the 1970s ABC-TV series ''Three's Company''. Provided by Wikipedia
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