 | Michael Caine als Noel Holcroft |
 | Anthony Andrews als Johann von Tiebolt |
 | Victoria Tennant als Helden von Tiebolt / Helden Tennyson |
 | Lilli Palmer als Althene Holcroft |
 | Mario Adorf als Erich Kessler / Jürgen Mass |
 | Michael Lonsdale als Ernst Manfredi |
 | Richard Münch als Oberst |
 | Alexander Kerst als Gen. Heinrich Clausen |
 | Guntbert Warns als Fritzl |
 | Shelley Thompson als Executive Secretary |
 | Bernard Hepton als Commander Leighton |
 | Carl Rigg als Anthony Beaumont |
 | André Penvern als Frederick Leger |
 | Andy Bradford als Hartman |
 | Shane Rimmer als Lt. Miles |
 | Tom Deininger als Concierge |
| Michael Wolf als Gen. Erich Kessler |
| Hugo Bower als Gen. Wilhelm von Tiebolt |
 | Michael Balfour als Hard Hat |
| Tharita Olivera De Sera als Assassin |
| John Frankenheimer | Director |
| Mike Rutter | Camera Operator |
| Ray Freeborn | Location Manager |
| George Axelrod | Screenplay |
| Edward Anhalt | Screenplay |
| John Hopkins | Screenplay |
| Robert Ludlum | Novel |
| Stanislas Syrewicz | Original Music Composer |
| Waldo Roeg | Second Assistant Director |
| Ivan Sharrock | Sound Recordist |
| Roy Larner | Gaffer |
| Tim Arrowsmith | Assistant Editor |
| John Poyner | Sound Editor |
| Angela Allen | Script Supervisor |
| Paul Cadiou | Production Accountant |
| Edwin Erfmann | Makeup Artist |
| Don French | First Assistant Director |
| Friedel Schröder | Wardrobe Supervisor |
| Peter Baldock | Assistant Editor |
| Mort Abrahams | Executive Producer |
| Edie Landau | Producer |
| Stefan Diepenbrock | Second Second Assistant Director |
| Jürgen Bieske | Location Manager |
| Ely A. Landau | Producer |
| Ralph Sheldon | Editor |
| Maggie Cartier | Casting |
| William Alexander | Art Direction |
| Barrie Payne | Still Photographer |
| Mildred Greenberg | Production Accountant |
| Otto Plaschkes | Co-Producer |
| Rodney Glenn | Sound Editor |
| Derek Hyde | Costume Design |
| Joachim Scholz | Electrician |
| Roger Watson | Music Coordinator |
| John Allenby | Property Master |
| Tony Lenny | Sound Editor |
| Jimmy Turrell | Camera Operator |
| Brian Ackland-Snow | Art Direction |
| Arno Ortmair | Production Manager |
| J. Paul Huntsman | ADR Supervisor |
| Robert Wiesmann | Assistant Camera |
| Zeli Barbier | Choreographer |
| Gerry Fisher | Director of Photography |
| Wally Schneiderman | Makeup Supervisor |
| Dennis C. Lewiston | Second Unit Director |
| Michael Murchan | Construction Manager |
| Tom Sachs | Associate Producer |
| Marcia Gay | Second Assistant Director |
| Joyce Stoneman | Wardrobe Supervisor |
| Peter Mullins | Production Design |
| Holger Gross | Art Direction |
| Hugh Strain | Sound Re-Recording Mixer |
| Philip Alton | Assistant Editor |
| Dieter Gackstetter | Choreographer |
| Donald Banks | Boom Operator |
