 | George C. Scott als Thomas Hudson |
 | David Hemmings als Eddy |
 | Gilbert Roland als Captain Ralph |
 | Hart Bochner als Tom |
 | Susan Tyrrell als Lil |
 | Richard Evans als Willy |
 | Claire Bloom als Audrey |
 | Julius Harris als Joseph |
 | Brad Savage als Andrew |
 | Michael-James Wixted als David |
 | Hildy Brooks als Helga Ziegner |
| Jessica Rains als Andrea |
| Walter Friedel als Herr Ziegner |
 | Charles Lampkin als Constable |
| Raphael Bretton | Set Decoration |
| Jane Feinberg | Casting |
| Max Palevsky | Producer |
| William J. Creber | Production Design |
| Mike Fenton | Casting |
| Ken Wales | Producer |
| Robert Swink | Editor |
| Del Acevedo | Makeup Artist |
| Rick Sharp | Makeup Artist |
| Lola 'Skip' McNalley | Hairstylist |
| Howard Beals | Sound Effects Editor |
| Francisco Day | Production Manager |
| June Edgerton | Music Editor |
| Donald L. Nobles | Construction Coordinator |
| Kevin Pike | Special Effects |
| Thomas Laughridge | Camera Operator |
| C. Darin Knight | Sound mixer |
| John Murray | Grip |
| Gene Stout | Gaffer |
| Alex Weldon | Special Effects |
| Marshall Schlom | Script Supervisor |
| Franklin J. Schaffner | Director |
| Fred J. Koenekamp | Director of Photography |
| Jerry Goldsmith | Original Music Composer |
| Peter Bart | Producer |
| John Wilkinson | Sound Re-Recording Mixer |
| Denne Bart Petitclerc | Screenplay |
| Ernest Hemingway | Novel |
| Arthur Morton | Orchestrator |
| Ernie Sawyers | Property Master |
