| Person | Type | Job | Role(s) |
|---|---|---|---|
 Angna Enters | Crew | Writing | Story, Idea |
 Cedric Gibbons | Crew | Art | Art Direction |
Daniele Amfitheatrof | Crew | Sound | Original Music Composer |
 Edwin B. Willis | Crew | Art | Set Decoration |
Frank E. Hull | Crew | Editing | Editor |
George Rhein | Crew | Directing | Assistant Director |
 Irene | Crew | Costume & Make-Up | Costume Design |
 Isobel Lennart | Crew | Writing | Screenplay |
Robert Sisk | Crew | Production | Producer |
Robert Surtees | Crew | Camera | Director of Photography |
 Roy Rowland | Crew | Directing | Director |
 Alan Napier | Cast | Actor | Dr. Woodring |
 Ava Gardner | Cast | Actress | Hat Check Girl (uncredited) |
 Barbara Bedford | Cast | Actress | Telephone Operator (uncredited) |
 Donald Meek | Cast | Actor | Professor Catty |
 Eddie Acuff | Cast | Actor | Policeman (uncredited) |
 Elisabeth Risdon | Cast | Actress | Mrs. Pringle |
 Henry O'Neill | Cast | Actor | Professor Josh Pringle |
 Hooper Atchley | Cast | Actor | Pepi (uncredited) |
 Howard Freeman | Cast | Actor | Professor Richards |
 James Craig | Cast | Actor | Mike Regan |
 Kathleen Lockhart | Cast | Actress | Mrs. Catty |
 Keenan Wynn | Cast | Actor | Packy Roost |
 Margaret O'Brien | Cast | Actress | Alpha |
 Marsha Hunt | Cast | Actress | Katie Mallory |
 Mike Mazurki | Cast | Actor | Fighter (uncredited) |
 Naomi Childers | Cast | Actress | Matron (uncredited) |
 Pauline Starke | Cast | Actress | Bobby's Mother (uncredited) |
 Philip Merivale | Cast | Actor | Professor Peter Vincent |
 Robert Blake | Cast | Actor | Jerry |
 Sara Haden | Cast | Actress | Rhoda Kitterick |
 Victor Sen Yung | Cast | Actor | Chinese Man (uncredited) |
 Walter Fenner | Cast | Actor | Professor Endicott |
 William Bishop | Cast | Actor | Reporter (uncredited) |
| Person | Type | Job | Role(s) |
