Trailer
Images
 | Roland Young as George McWhirter Fotheringay |
 | Ralph Richardson as Colonel Winstanley |
 | Edward Chapman as Major Grigsby |
 | Ernest Thesiger as Maydig |
 | Joan Gardner as Ada Price |
 | Sophie Stewart as Maggie Hooper |
 | Robert Cochran as Bill Stoker |
 | Lady Tree as Grigsby's Housekeeper |
 | Laurence Hanray as Mr. Bamfylde |
 | George Zucco as The Colonel's Butler |
 | Wallace Lupino as Constable Winch |
 | Joan Hickson as Effie |
 | Wally Patch as Supt. Smithnells |
| Mark Daly as Toddy Beamish |
 | George Sanders as Indifference - a God |
 | Torin Thatcher as Observer |
 | Michael Rennie as San Francisco Cop |
| Writing | |
| Lajos Biró | Writer |
| H. G. Wells | Writer |
Directing | |
| Lothar Mendes | Director |
Crew | |
| Edward Cohen | Special Effects |
Camera | |
| Harold Rosson | Director of Photography |
Editing | |
| Philip Charlot | Editor |
Crew | |
| Lawrence W. Butler | Special Effects |
Production | |
| Alexander Korda | Producer |
Costume & Make-Up | |
| John Armstrong | Costume Design |
Visual Effects | |
| Ned Mann | Special Effects Supervisor |
Crew | |
| Harry Zech | Special Effects |
Sound | |
| Mischa Spoliansky | Original Music Composer |
Production | |
| David B. Cunynghame | Production Manager |
Sound | |
| Muir Mathieson | Music Director |
| A.W. Watkins | Sound Director |
Art | |
| Vincent Korda | Set Designer |
Directing | |
| Imlay Watts | Assistant Director |
Editing | |
| William Hornbeck | Supervising Editor |
