Robert Young
— Michael Morgan
Florence Rice
— Judy Barclay
Frank Craven
— Dad Morgan
Henry Hull
— Dave Duvallo
Lee Bowman
— La Claire
Cliff Clark
— Inspector Marty Gavigan
Astrid Allwyn
— Mrs. Zelma La Claire
Walter Kingsford
— Colonel Watrous
Frederick Worlock
— Dr. Cesar Sabbatt
Gloria Holden
— Madame Rapport
William Demarest
— Quinn
Harold Minjir
— Tauro
Eddie Acuff
— Second Taxi Driver
William Bailey
— Spectator in Theatre Box
Margaret Bert
— Mary W. Hotchkinson
Truman Bradley
— Nightclub Master of Ceremonies
Ralph Brooks
— Nightclub Patron
Chester Clute
— Waiter with Sugar
John Davidson
— Weird Voice (voice)
John Webb Dillion
— Magic Show Audience Volunteer
Edward Earle
— Ace of Spades Man
Herbert Evans
— Nightclub Patron
Jack W. Johnston
— Magic Show Audience Volunteer
Suzanne Kaaren
— Magician's Assistant in Demo
Armand Kaliz
— François
Edward Kilroy
— First Attendant
Charles Lane
— Fleetwood Apartments Desk Clerk
Richard Loo
— Chinese Soldier in Demo
Frances MacInerney
— Magician's Assistant in Magic Show
Alphonse Martell
— Nightclub Headwaiter