- male, deceased (1990)
- Howard Green Duff was a radio and stage performer before he began appearing in films in the late 1940s. He played Dashiell Hammett's private eye...
- female
- Ida was born in London to a show business family. In 1933, her mother brought Ida with her to an audition and Ida got the part her mother wanted....
- male
- Played Dashiell Hammett's famous character in "The Adventures of Sam Spade" on radio. Father of Bridget Duff. He played the detective, "Sam Spade"...
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