 Lon Chaney Jr.Kharis | Kharis |
 John CarradineYousef Bey | Yousef Bey |
 Robert LoweryTom Hervey | Tom Hervey |
 Ramsay AmesAmina Mansouri | Amina Mansouri |
 Barton MacLaneInspector Walgreen | Inspector Walgreen |
 George ZuccoAndoheb, High Priest of Arkan | Andoheb, High Priest of Arkan |
 Frank ReicherProf. Matthew Norman | Prof. Matthew Norman |
 Harry ShannonSheriff Elwood | Sheriff Elwood |
 Emmett VoganCoroner | Coroner |
 Lester SharpeDoctor Ayad | Doctor Ayad |
 Claire WhitneyElla Norman | Ella Norman |
 Oscar O'SheaMuseum Watchman | Museum Watchman |
 Steve BarclayTom's Classmate (uncredited) | Tom's Classmate (uncredited) |
| JJack C. SmithDeputy Joe (uncredited) | Deputy Joe (uncredited) |
 David BruceRadio Announcer (uncredited; voice) | Radio Announcer (uncredited; voice) |
 Noble 'Kid' ChissellTownsman (uncredited) | Townsman (uncredited) |
| OOliver CrossMuseum Tourist (uncredited) | Museum Tourist (uncredited) |
 William DesmondMuseum Tourist (uncredited) | Museum Tourist (uncredited) |
 Bess FlowersTownswoman (uncredited) | Townswoman (uncredited) |
 Fay HoldernessPolicewoman (uncredited) | Policewoman (uncredited) |
 Michael JeffersTownsman (uncredited) | Townsman (uncredited) |
 Mira McKinneyMartha Evans (uncredited) | Martha Evans (uncredited) |
 Jack PerrinTownsman (uncredited) | Townsman (uncredited) |
 Jack RockwellDeputy (uncredited) | Deputy (uncredited) |
| JJack C. SmithDeputy (uncredited) | Deputy (uncredited) |
 Pietro SossoPriest (uncredited) | Priest (uncredited) |
 Ivan TriesaultMuseum Guide (uncredited) | Museum Guide (uncredited) |
 Dorothy VaughanAda Blake (uncredited) | Ada Blake (uncredited) |
| CCarl VernellStudent (uncredited) | Student (uncredited) |
 Martha VickersMiss McLean - Student (uncredited) | Miss McLean - Student (uncredited) |
