 Richard CarlsonDr. Geoffrey Burton | Dr. Geoffrey Burton |
 Nancy KellyPat Lindsay | Pat Lindsay |
 Albert BassermannDr. Storm | Dr. Storm |
 Miles ManderProfessor Langer | Professor Langer |
 Edward GarganOfficer Charlie Prescott | Officer Charlie Prescott |
 Adrian MorrisOfficer John Prescott | Officer John Prescott |
 Martin KosleckGeorge Taylor | George Taylor |
 Walter KingsfordHeydt | Heydt |
 Cy KendallDahlig | Dahlig |
 Nestor PaivaGrube | Grube |
 Oscar O'SheaPa Prescott | Pa Prescott |
 Mary GordonMa Prescott | Ma Prescott |
 Arthur LoftInspector Karns | Inspector Karns |
 Marion MartinNurse | Nurse |
 Clem BevansStation Watchman | Station Watchman |
| JJohn ButlerDetective Jenks | Detective Jenks |
 John DilsonPolice Dr. Tracy | Police Dr. Tracy |
| KKate MacKennaCook at Gas Station | Cook at Gas Station |
 Gladys BlakeSales Clerk (Uncredited) | Sales Clerk (Uncredited) |
 Nell CraigSales Clerk (Uncredited) | Sales Clerk (Uncredited) |
 Milton KibbeeHotel Desk Clerk (Uncredited) | Hotel Desk Clerk (Uncredited) |
 Eddie AcuffGarage Attendantt (Uncredited) | Garage Attendantt (Uncredited) |
 Stanley BlystonePoliceman (Uncredited) | Policeman (Uncredited) |
 Wade BotelerO'Brien (Uncredited) | O'Brien (Uncredited) |
 Eddie DunnPolice Sergeant (Uncredited) | Police Sergeant (Uncredited) |
 Pat FlahertyTaxi Driver at Station (Uncredited) | Taxi Driver at Station (Uncredited) |
 J. Anthony HughesPoliceman at Garage (Uncredited) | Policeman at Garage (Uncredited) |
 Si JenksGateman at Sanitarium (Uncredited) | Gateman at Sanitarium (Uncredited) |
 Paul McVeyCop on Small Town Street (Uncredited) | Cop on Small Town Street (Uncredited) |
 Ella NealTelephone Operator (Uncredited) | Telephone Operator (Uncredited) |
