John Frankenheimer Director Roy Scheider Harry Mitchell Actor Ann-Margret Barbara Mitchell Actor Vanity Doreen Actor John Glover Alan Raimy Actor Robert Trebor Leo Franks Actor Lonny Chapman Jim O'Boyle Actor Kelly Preston Cini Actor Clarence Williams III Bobby Shy Actor Doug McClure Mark Arveson Actor Alex Henteloff Dan Lowenthal Actor Amy White Party Goer Actor Amber Lynn Party Goer Actor Elmore Leonard Screenwriter John Steppling Screenwriter Yoram Globus Producer Menahem Golan Producer Henry T. Weinstein Executive Producer Jost Vacano Cinematographer Robert F. Shugrue Film Editing Philip Harrison Production Design Russell Christian Art Director Max Whitehouse Set Decoration Ray Summers Costume Design Louis DiGiaimo Casting