| Person | Type | Job | Role(s) |
|---|---|---|---|
 John Larkin | Crew | Writing | Writer |
 Norman Foster | Crew | Directing | Director |
 Al Kikume | Cast | Actor | Waiter at Hawaiian Village |
 Arthur Rankin | Cast | Actor | Airways Official |
 Bert Moorhouse | Cast | Actor | Audience Member |
 Billie Seward | Cast | Actress | Mrs. Bessie Sibley |
Bruce Mitchell | Cast | Actor | Police Desk Sergeant |
 Bud Geary | Cast | Actor | Cop at Station House |
 Cesar Romero | Cast | Actor | Fred Rhadini |
 Charles Halton | Cast | Actor | Uncle Redley |
 Charles Tannen | Cast | Actor | Plane Passenger |
 David Newell | Cast | Actor | Audience Member |
 Donald MacBride | Cast | Actor | Deputy Police Chief J.J. Kilvaine |
 Douglas Fowley | Cast | Actor | Peter Lewis |
 Douglass Dumbrille | Cast | Actor | Stewart Salsbury, alias Thomas Gregory |
Edith Hallor | Cast | Toots - Stout Woman | |
Frank Meredith | Cast | Second Detective | |
 Fred Kelsey | Cast | Actor | Detective - in Cab and at Theatre |
Fred Rapport | Cast | Actor | Audience Member |
 Gerald Mohr | Cast | Actor | Dr. Zodiac (in disguise) |
Gloria Roy | Cast | Actress | Plane Passenger |
 Hank Mann | Cast | Actor | Second Taxicab Driver |
Hans Moebus | Cast | Actor | Audience Member |
 Harold Goodwin | Cast | Actor | Airplane Steward |
 Harold Miller | Cast | Actor | Audience Member |
 Harry Strang | Cast | Actor | Taxicab Dispatcher |
 Heinie Conklin | Cast | Actor | First Taxicab Driver |
Imboden Parrish | Cast | Plane Passenger | |
 Jack Chefe | Cast | Actor | Audience Member |
 Jeffrey Sayre | Cast | Actor | Man at Landing Gate |
 John Elliott | Cast | Actor | Doctor - Backstage |
 June Gale | Cast | Actress | Myra Rhadini |
 Kay Linaker | Cast | Actress | Egyptian Princess Ectoplasm |
 Louis Jean Heydt | Cast | Actor | Paul Essex |
 Margaret Mann | Cast | Actress | Airplane Passenger |
 Pauline Moore | Cast | Actress | Eve Cairo |
 Sally Blane | Cast | Actress | Stella Essex |
 Sayre Dearing | Cast | Actor | Audience Member |
 Sidney Toler | Cast | Actor | Charlie Chan |
Tom Quinn | Cast | Actor | Man at Landing Gate |
 Trevor Bardette | Cast | Actor | Dr. Zodiac's Servant |
 Victor Sen Yung | Cast | Actor | Jimmy Chan |
 Wally Vernon | Cast | Actor | Elmer |
Edwin Tuttle | Cast | Actor | Audience Member |
| Person | Type | Job | Role(s) |
