Stanley Kramer Director Vivien Leigh Mary Treadwell Actor Simone Signoret La Condesa Actor Oskar Werner Dr. Schumann Actor José Ferrer Rieber Actor Lee Marvin Tenny Actor Elizabeth Ashley Jenny Actor George Segal David Actor Jose Greco Pepe Actor Michael Dunn Glocken Actor Charles Korvin Capt. Thiele Actor Heinz Rühmann Lowenthal Actor Lilia Skala Frau Hutten Actor BarBara Luna Amparo Actor Christiane Schmidtmer Lizzi Actor Alf Kjellin Freytag Actor Werner Klemperer Lt. Huebner Actor John Wengraf Graf Actor Olga Fabian Frau Schmitt Actor Gila Golan Elsa Actor Oscar Beregi Jr. Lutz Actor Stanley Adams Professor Hutten Actor Karen Verne Frau Lutz Actor Abby Mann Screenwriter Ernest Laszlo Cinematographer Robert C. Jones Film Editing Ernest Gold Original Music Robert Clatworthy Production Design Joseph Kish Set Decoration Bill Thomas Costume Design