Directed by
| Eugène Lourié | ... | (as Eugene Lourie) |
Writing Credits
| Thelma Schnee | ... | (screenplay) |
| Willis Goldbeck | ... | (story) |
Cast (in credits order) verified as complete
| John Baragrey | ... | Dr. Henry Spensser | |
| Mala Powers | ... | Anne Spensser | |
| Otto Kruger | ... | Dr. William Spensser | |
| Robert Hutton | ... | Dr. John Robert Carrington | |
| Ross Martin | ... | Dr. Jeremy 'Jerry' Spensser | |
| Charles Herbert | ... | Billy Spensser | |
| Rest of cast listed alphabetically: | |||
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George Douglas | ... | Official (uncredited) |
| Roy Engel | ... | Police Inspector (uncredited) | |
| Sam Harris | ... | Man at Funeral Service (uncredited) | |
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Larry Kerr | ... | Reporter (uncredited) |
| Harold Miller | ... | Airport Accident Extra (uncredited) | |
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Dick Nelson | ... | Charles - Chauffeur-Butler (uncredited) |
| Foster H. Phinney | ... | Reporter (uncredited) | |
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Jack Richardson | ... | Reporter (uncredited) |
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Court Shepard | ... | Reporter (uncredited) |
| Charles Sherlock | ... | Airline Pilot (uncredited) | |
| Bert Stevens | ... | Airport Accident Extra (uncredited) | |
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Max Trumpower | ... | Reporter (uncredited) |
| Ed Wolff | ... | The Colossus (uncredited) | |
Produced by
| William Alland | ... | producer |
Music by
| Van Cleave | ||
Cinematography by
| John F. Warren | ... | director of photography |
Editing by
| Floyd Knudtson | ||
Casting By
| Bert McKay | ... | (uncredited) |
Art Direction by
| John B. Goodman | ... | (as John Goodman) |
| Hal Pereira | ||
Set Decoration by
| Sam Comer | ||
| Grace Gregory | ||
Makeup Department
| Nellie Manley | ... | hair style supervisor |
| Wally Westmore | ... | makeup supervisor |
Production Management
| Charles Woolstenhulme | ... | unit production manager (uncredited) |
Second Unit Director or Assistant Director
| Ralph Axness | ... | assistant director |
| Ira Stewart | ... | second assistant director (uncredited) |
Art Department
| Phil A. Ankrom | ... | prop man (uncredited) |
Sound Department
| Winston H. Leverett | ... | sound recordist (as Winston Leverett) |
| John Wilkinson | ... | sound recordist |
| Howard Beals | ... | sound editor (uncredited) |
Visual Effects by
| Farciot Edouart | ... | process photography |
| John P. Fulton | ... | special photographic effects |
Costume and Wardrobe Department
| Charles Gemora | ... | designer: Colossus costume (uncredited) |
| Ralph Jester | ... | designer: Colossus costume (uncredited) |
Music Department
| Jack Cookerly | ... | musician: organ (uncredited) |
| Fred Steiner | ... | orchestrator (uncredited) |
| Harry Sukman | ... | musician: piano (uncredited) |
| Irvin Talbot | ... | conductor (uncredited) |
Script and Continuity Department
| Kathleen Fagan | ... | script supervisor (uncredited) |
Additional Crew
| Ross Martin | ... | voice of the Colossus (uncredited) |
