Directed by
| Irving Pichel | ||
Writing Credits
| Alford Van Ronkel | ... | (written for the screen by) (as Rip Van Ronkel) & |
| Robert A. Heinlein | ... | (written for the screen by) and |
| James O'Hanlon | ... | (written for the screen by) |
| Robert A. Heinlein | ... | (from a novel by) |
Cast (in credits order) verified as complete
| John Archer | ... | Jim Barnes | |
| Warner Anderson | ... | Dr. Charles Cargraves | |
| Tom Powers | ... | General Thayer | |
| Dick Wesson | ... | Joe Sweeney | |
| Erin O'Brien-Moore | ... | Emily Cargraves | |
| Rest of cast listed alphabetically: | |||
| Steve Carruthers | ... | Businessman at Meeting (uncredited) | |
| Franklyn Farnum | ... | Factory Worker (uncredited) | |
 |
Jack Gargan | ... | Businessman at Meeting (uncredited) |
| Everett Glass | ... | Mr. La Porte (uncredited) | |
| Kenner G. Kemp | ... | Businessman at Meeting (uncredited) | |
| Knox Manning | ... | Knox Manning (uncredited) | |
|
|
Mike Miller | ... | Undetermined Secondary Role (uncredited) |
| Irving Pichel | ... | Off Screen Narrator of Woody Woodpecker Cartoon (uncredited) | |
| Cosmo Sardo | ... | Businessman at Meeting (uncredited) | |
| Grace Stafford | ... | Woody Woodpecker (voice) (uncredited) | |
| Bert Stevens | ... | Businessman at Meeting (uncredited) | |
|
|
Ted Warde | ... | Brown (uncredited) |
Produced by
| George Pal | ... | producer |
Music by
| Leith Stevens | ||
Cinematography by
| Lionel Lindon | ... | (photographed by) |
Editing by
| Duke Goldstone | ... | film editor |
Production Design by
| Ernst Fegté | ||
Set Decoration by
| George Sawley | ||
Makeup Department
| Webster C. Phillips | ... | makeup artist (as Webster Phillips) |
Production Management
| Martin Eisenberg | ... | production supervisor |
Second Unit Director or Assistant Director
| Harold Godsoe | ... | assistant director |
Art Department
| Chesley Bonestell | ... | technical advisor of astronomical art |
Sound Department
| William H. Lynch | ... | sound (as William Lynch) |
Special Effects by
| Lee Zavitz | ... | special effects |
Animation Department
| Walter Lantz | ... | cartoon sequences |
| Ray Abrams | ... | animator (uncredited) |
| Fred Brunish | ... | background artist (uncredited) |
| Laverne Harding | ... | animator (uncredited) |
| Les Kline | ... | animator (uncredited) |
| Walter Lantz | ... | animation producer (uncredited) / producer (uncredited) |
| Fred Madison | ... | animator (uncredited) |
| Ernie Nordli | ... | layout artist (uncredited) |
| Don Patterson | ... | animator (uncredited) / director (uncredited) |
| Paul J. Smith | ... | animator (uncredited) |
| Don Towsley | ... | animator (uncredited) |
Editorial Department
| Robert Brower | ... | color consultant: Technicolor |
Music Department
| Dave Torbett | ... | orchestrator (as David Torbet) |
| Clarence Wheeler | ... | composer: animation sequence (uncredited) |
Additional Crew
| John S. Abbott | ... | technical supervisor |
| Robert A. Heinlein | ... | technical advisor |
| Miles E. Pike | ... | technician |
| Robert S. Richardson | ... | technical advisor |
| Dale Tholen | ... | technician |
