William H. Thompson (July 8, 1913 – July 15, 1971) was an American radio personality and voice actor, whose career stretched from the 1930s until his death. He was a featured comedian playing multiple roles on the Fibber McGee and Molly radio series, and was the voice of Droopy in most of the Metro-Goldwyn-Mayer cartoon studio theatrical cartoons from 1943 to 1958.