Robert Emhardt was an American character actor who worked on stage, in film, and on television. Emhardt was frequently cast as a villain, often a crooked businessman or corrupt politician.

Underworld U.S.A. is a 1961 American neo-noir crime film produced, written, and directed by Samuel Fuller. It tells the story of a 14-year-old boy who goes to enormous lengths to get revenge against the mobsters who beat his father to death. It stars Cliff Robertson, Dolores Dorn, and Beatrice Kay.