The Invisible Man's grandson uses his secret formula to spy on Nazi Germany in this comedy-thriller.
| Directing | Edwin L. Marin | Director |
| Production | Frank Lloyd | Producer |
| Writing | H.G. Wells | Novel |
| Editing | Edward Curtiss | Editor |
| Production | George Waggner | Associate Producer |
| Sound | Hans J. Salter | Original Music Composer |
| Camera | Lester White | Director of Photography |
| Art | Jack Otterson | Art Direction |
| Art | Russell A. Gausman | Set Decoration |
| Costume & Make-Up | Vera West | Costume Design |
| Visual Effects | John P. Fulton | Visual Effects |
| Visual Effects | Roswell A. Hoffmann | Visual Effects |
| Writing | Curt Siodmak | Screenplay |
| Directing | Vernon Keays | Assistant Director |
| Art | Robert F. Boyle | Assistant Art Director |
| Art | Edward R. Robinson | Assistant Set Decoration |
| Sound | Bernard B. Brown | Sound Director |
| Sound | William Hedgcock | Sound Engineer |
| Crew | David S. Horsley | Special Effects |
| Visual Effects | John P. Fulton | Visual Effects Camera |
| Visual Effects | Roswell A. Hoffmann | Visual Effects Camera |
| Crew | Eddie Parker | Stunts |
| Crew | Duke York | Stunts |
| Sound | Hans J. Salter | Music Director |
| Sound | Richard Hageman | Music |
| Sound | Frank Skinner | Music |
