| Person | Type | Job | Role(s) |
|---|---|---|---|
 A.J. Gilmore | Crew | Art | Set Decoration |
Ben Pivar | Crew | Production | Producer |
Bernard B. Brown | Crew | Sound | Sound Director |
Brenda Weisberg | Crew | Writing | Screenplay |
Fritz Leiber Jr. | Crew | Writing | Novel |
John B. Goodman | Crew | Art | Art Direction |
John P. Fulton | Crew | Visual Effects | Visual Effects |
Milton Carruth | Crew | Editing | Editor |
Oliver Drake | Crew | Production | Associate Producer |
Paul Sawtell | Crew | Sound | Original Music Composer |
 Reginald Le Borg | Crew | Directing | Director |
Richard H. Riedel | Crew | Art | Art Direction |
Russell A. Gausman | Crew | Art | Set Decoration |
Scott Darling | Crew | Writing | Adaptation |
Vera West | Crew | Costume & Make-Up | Costume Designer |
 Virgil Miller | Crew | Camera | Director of Photography |
William Hedgcock | Crew | Sound | Sound |
William Tummel | Crew | Directing | Assistant Director |
 Anne Gwynne | Cast | Actress | Paula Clayton Reed |
 David Hoffman | Cast | Actor | The Spirit of the Inner Sanctum (uncredited) |
 Edmund Mortimer | Cast | Actor | Party Guest (uncredited) |
 Elisabeth Risdon | Cast | Actress | Dean Grace Gunnison |
 Elizabeth Russell | Cast | Actress | Evelyn Sawtelle |
 Evelyn Ankers | Cast | Actress | Illona Carr |
 Gertrude Astor | Cast | Actress | Party Guest (uncredited) |
 Harry Hayden | Cast | Actor | Dean Septimus Carr |
 Kay Harding | Cast | Actress | Student |
 Larry Steers | Cast | Actor | Party Guest (uncredited) |
 Lois Collier | Cast | Actress | Margaret Mercer |
 Lon Chaney Jr. | Cast | Actor | Prof. Norman Reed |
 Milburn Stone | Cast | Actor | |
 Phil Brown | Cast | Actor | David Jennings |
 Ralph Morgan | Cast | Actor | Prof. Millard Sawtelle |
 William Hudson | Cast | Actor | Second Gossiping Male Student (uncredited) |
 Chuck Hamilton | Cast | Actor | The Carpenter (uncredited) |
| Person | Type | Job | Role(s) |
