Edward Leo Peter McMahon Jr. (March 6, 1923 – June 23, 2009) was an American announcer, game show host, comedian, actor, singer, and combat aviator. McMahon and Johnny Carson began their association in their first TV series, the ABC game show Who Do You Trust?, appearing from 1958 to 1962. McMahon then made his famous thirty-year mark as Carson's sidekick and announcer on NBC's The Tonight Show Starring Johnny Carson from 1962 to 1992. Wikipedia
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