Joshua Logan Director Lee Marvin Ben Rumson Actor Clint Eastwood Sylvester Newel Actor Jean Seberg Elizabeth Actor Harve Presnell Rotten Luck Willie Actor Ray Walston Mad Jack Duncan Actor Tom Ligon Horton Fenty Actor Alan Dexter Parson Actor William O'Connell Horace Tabor Actor Benny Baker Haywood Holbrook Actor Alan Baxter Mr. Fenty Actor Paula Trueman Mrs. Fenty Actor Robert Easton Atwell Actor Geoffrey Norman Foster Actor H.B. Haggerty Steve Bull Actor Terry Jenkins Joe Mooney Actor Karl Bruck Schermerhorn Actor John Mitchum Jacob Woodling Actor Sue Casey Sarah Woodling Actor Eddie Little Sky Indian Actor Harvey Parry Higgins Actor H.W. Gim Wong Actor William Mims Frock-coated man Actor Roy Jenson Hennessey Actor Patrick Hawley Clendennon Actor Alan Jay Lerner Screenwriter, Producer William A. Fraker Cinematographer Robert C. Jones Film Editing Frederick Loewe Original Music John Truscott Production Design, Costume Design Carl Braunger Art Director Jack Roe First Assistant Director Al Murphy First Assistant Director