Discover
Adele Mara
Belinda Prentice
Mark Roberts
William Foresman III (as Robert Scott)
Lorna Gray
Judith Foresman (as Adrian Booth)
Robert Armstrong
Insp. Prentice
William Haade
Iggy Broty
Bob Steele
Chicago
Harry Shannon
Severance
Charles Evans
Jonathan Lowell
Joyce Compton
Emmy
Russell Hicks
Col. Bentry
Mary Gordon
Housekeeper
Paul E. Burns
Professor Ordson
Colin Campbell
Doctor
Edward Gargan
Big Mac
Patricia Knox
Waitress
Eddie Acuff
Policeman at Bentry Mansion Door
Ralph Brooks
Medical Examiner
George Davis
Arnold
Franklyn Farnum
Restaurant Patron
Sam Harris
Restaurant Patron
Edward Rickard
Restaurant Patron
Larry Steers
Headwaiter
Camera
William Bradford
Director of Photography
Directing
George Blair
Director
Camera
William Bradford
Director of Photography
Directing
George Blair
Director