Henry Hathaway Director John Wayne Rooster Cogburn Actor Glen Campbell La Boeuf Actor Kim Darby Mattie Ross Actor Jeremy Slate Emmett Quincy Actor Robert Duvall Ned Pepper Actor Dennis Hopper Moon Actor Alfred Ryder Goudy Actor Strother Martin Col. G. Stonehill Actor Jeff Corey Tom Chaney Actor Ron Soble Capt. Boots Finch Actor John Fiedler Lawyer Daggett Actor James Westerfield Judge Parker Actor John Doucette Sheriff Actor Donald Woods Barlow Actor Edith Atwater Mrs. Floyd Actor Carlos Rivas Dirty Bob Actor Isabel Boniface Mrs. Bagby Actor H.W. Gim Chen Lee Actor John Pickard Frank Ross Actor Elizabeth Harrower Mrs. Ross Actor Myron Healey Deputy at Prisoner Unloading Actor Hank Worden R. Ryan Actor Guy Wilkerson The Hangman Actor Boyd "Red" Morgan Red Actor Hal B. Wallis Producer Marguerite Roberts Screenwriter Elmer Bernstein Original Music Lucien Ballard Cinematographer Walter H. Tyler Production Design John Burton Set Decoration Ray Moyer Set Decoration Dorothy Jeakins Costume Design