Giuliano Montaldo Director Edward G. Robinson Prof. James Anders Actor Janet Leigh Mary Ann Actor Adolfo Celi Mark Milford Actor Klaus Kinski Erich Weiss Actor George Rigaud Gregg Actor Robert Hoffmann Jean-Paul Audry Actor Riccardo Cucciola Agostino Rossi Actor Miguel del Castillo Manager Actor Arrigo Colombo Producer Giorgio Papi Producer Zeljko Kunkera Producer Antonio Macasoli Cinematographer Nino Baragli Film Editing Ennio Morricone Original Music Alberto Boccianti Art Director Giorgio Desideri Costume Design