 | Mel Ferrer als Dr. Walker |
 | Glenn Ford als Det. Jake Durham |
 | Lance Henriksen als Raymond Armstead |
 | John Huston als Jerzy Colsowicz |
 | Joanne Nail als Barbara Collins |
 | Sam Peckinpah als Dr. Sam Collins |
 | Shelley Winters als Jane Phillips |
 | Paige Conner als Katy Collins |
| J.A. Townsend als Susan |
 | Franco Nero als Jesus Christ |
| Joe Dorsey als Sheriff Paul Townsend |
| Johnny Popwell als AAA Mechanic |
 | Wallace Wilkinson als Police Captain |
 | Steve Somers als Self - Sportscaster |
 | Lou Walker als AAA Mechanic |
| Walter Gordon Sr. als Thomas |
| Hsio Ho Chao als Sales Clerk |
| Calvin Embry als Hot Dog Man |
| Betty Turner als Receptionist |
| Steve Cunningham als Jerzy's Assistant |
| Neal Boortz als Businessman |
| Jack H. Gordon als Businessman |
| Steve Beizer als Basketball Coach |
| Bill Ash als Businessman |
| Charles Hardnett als Basketball Coach |
| Dave Hinchberger als Basketball Game Patron (uncredited) |
| Bart Russell als Skating Rink Patron (uncredited) |
| Aron Siegel als Hot Dog Stand Customer (uncredited) |
| Luciano Comici | Screenplay |
| Giulio Paradisi | Director |
| Ovidio G. Assonitis | Story |
| Franco Micalizzi | Original Music Composer |
| Giulio Paradisi | Story |
| Robert Mundi | Screenplay |
| Ennio Guarnieri | Director of Photography |
| Ovidio G. Assonitis | Producer |
| Roberto Curi | Editor |
| Franco Vanorio | Art Direction |
| Samuel Z. Arkoff | Executive Producer |
| Samuel Goldwyn Jr. | Executive Producer |
| Edward L. Montoro | Executive Producer |
| M. Graziosi | Set Decoration |
| Ermando Biamonte | Visual Effects |
| Bruno Bozzetto | Animation |
| A. Caponetto | Associate Producer |
| Giancarlo De Leonardis | Key Hair Stylist |
| Mario Cotone | Production Supervisor |
| Jacques Goyard | Executive In Charge Of Production |
| Christopher Cruise | Assistant Director |
| Meyer Glickman | Assistant Director |
| Jean Ludwigg | Assistant Director |
| Lynn Wolverton-Parker | Property Master |
| Brian Smith | Property Master |
| Vern Hyde | Special Effects |
| Bart Russell | Special Effects Assistant |
| Bob Shelley | Special Effects |
| Ted Duncan | Stunt Coordinator |
| Max Balchowsky | Stunts |
| Lawrence Montaigne | Stunts |
| Artie Nay | Stunts |
| Aaron Norris | Stunts |
| Don Pike | Stunts |
| Cheyenne Rivera | Stunts |
| Roberto D'Ettorre Piazzoli | Second Unit Director of Photography |
| Denny Mooradian | Electrician |
| Stratton Leopold | Location Casting |
| Franco Micalizzi | Conductor |
