| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Edeson | Crew | Camera | Director of Photography |
 Carl Laemmle Jr. | Crew | Production | Producer |
 Charles D. Hall | Crew | Art | Art Direction |
Clarence Kolster | Crew | Editing | Editor |
Donald Henderson Clarke | Crew | Writing | Novel |
 James Whale | Crew | Directing | Director |
Richard Schayer | Crew | Writing | Screenplay |
 Winifred Dunn | Crew | Writing | Screenplay |
 Andy Devine | Cast | Actor | Clarence Howe |
 Arthur Hoyt | Cast | Actor | Mr. Thomas |
Arthur Thalasso | Cast | Actor | Neighbor (uncredited) |
 Bert Roach | Cast | Actor | Mr. Gilman |
 Blanche Payson | Cast | Actress | Mrs. Thomas |
 Cecil Cunningham | Cast | Actress | Mrs. Rosy |
 Dick Winslow | Cast | Actor | Irish Neighbor's Son (uncredited) |
 Edwin Maxwell | Cast | Actor | Prof. Von Mueller (uncredited) |
 Ellinor Vanderveer | Cast | Actress | Visitor (uncredited) |
 Elspeth Dudgeon | Cast | Actress | Neighbor (uncredited) |
 Ethel Griffies | Cast | Actress | Nurse Lovett |
 Francis Ford | Cast | Actor | Insane Asylum Warden (uncredited) |
 Hattie McDaniel | Cast | Actress | Injured Patient (uncredited) |
 Helen Jerome Eddy | Cast | Actress | Mrs. Gilman |
Jane Keckley | Cast | Actress | Personnel Manager (uncredited) |
 John Halliday | Cast | Actor | Albert Hartman |
 Lew Ayres | Cast | Actor | Dr. Myron Brown |
 Lorin Raker | Cast | Actor | Mr. Rosy |
 Mae Clarke | Cast | Actress | Ruth Robbins |
 Mary Gordon | Cast | Actress | Irish Neighbor (uncredited) |
 Monte Montague | Cast | Actor | Ambulance Driver |
 Olaf Hytten | Cast | Actor | Doctor at Lecture (uncredited) |
 Oscar Apfel | Cast | Actor | Dr. Wilcox |
Rose Plumer | Cast | Actress | Neighbor (uncredited) |
Ted Billings | Cast | Actor | Napoleon (uncredited) |
 Una Merkel | Cast | Actress | Betty Merrick |
 Walter Brennan | Cast | Actor | Cigar Stand Proprietor (uncredited) |
| Person | Type | Job | Role(s) |
