John Ford Director Henry Fonda Wyatt Earp Actor Linda Darnell Chihuahua Actor Victor Mature Dr. John 'Doc' Holliday Actor Walter Brennan Old Man Clanton Actor Cathy Downs Clementine Carter Actor Tim Holt Virgil Earp Actor Ward Bond Morgan Earp Actor Alan Mowbray Granville Thorndyke Actor John Ireland Billy Clanton Actor Jane Darwell Kate Nelson Actor Samuel G. Engel Screenwriter, Producer Sam Hellman Writer Stuart N. Lake Writer Winston Miller Writer Darryl F Zanuck Executive Producer Cyril J. Mockridge Original Music David Buttolph Original Music Joseph MacDonald Cinematographer Dorothy Spencer Film Editing James Basevi Art Director Lyle R. Wheeler Art Director Thomas Little Set Decoration René Hubert Costume Design