Joseph H. Lewis Director Cornel Wilde Police Lt. Leonard Diamond Actor Richard Conte Mr. Brown Actor Brian Donlevy Joe McClure Actor Jean Wallace Susan Lowell Actor Robert Middleton Police Capt. Peterson Actor Lee Van Cleef Fante Actor Earl Holliman Mingo Actor Helen Walker Alicia Brown Actor Jay Adler Detective Sam Hill Actor John Hoyt Nils Dreyer Actor Ted de Corsia Ralph Bettini Actor Helene Stanton Rita Actor Roy Gordon Audubon Actor Whit Bissell Doctor Actor Philip Van Zandt Mr. Jones (scenes deleted) Actor Steve Mitchell Bennie Smith Actor Sidney Harmon Producer Walter Mirisch Executive Producer Philip Yordan Screenwriter David Raksin Original Music John Alton Cinematographer Robert S. Eisen Film Editing Rudi Feld Production Design Jack McConaghy Set Decoration