About Howard Duff
Howard Green Duff (November 24, 1913 – July 8, 1990) was an American actor. He started in radio during World War II before appearing in many Hollywood features and television programs from 1947 to 1990. He also directed for television. His career was marked by accusations of disloyalty during the red scare of the 1950s. Duff worked locally in Seattle-area theater until entering the United States Army Air Corps during World War II. Duff's most memorable radio role was as Dashiell Hammett's private eye Sam Spade in The Adventures of Sam Spade (1946–1950). Due to accusations of Duff being a communist and with his TV and film career starting to take hold, he ultimately left the program in 1950 at the start.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.