What was Robert Duvall’s film debut? August 2, 2020December 6, 2011 by Pamela Landy Robert Duvall’s film debut was Boo Radley in To Kill a Mockingbird (1962). Related Answers What was Robert Redford’s directorial debut? What was Bette Davis’s film debut? What was Katharine Hepburn’s film debut? What was Claude Rains’s American film debut? What was Gene Kelly’s film debut? What was Meryl Streep’s theatrical film debut?
