Mal Stevens
Richard Arlen
Eleanor Spencer
Virginia Bruce
Al Thompson
Matthew Betz
Barbara
Joyce Compton
Senator Reilly
Hale Hamilton
Butler at Spencer Home
Sidney Bracey
Sam
Paul Fix
Heinrich Henkel
Christian Rub
Big Bill
Harry Woods
Memory Test Instructor
Joseph Crehan
Microscopic Expert
Jonathan Hale
Van Rensseler
Harvey Stephens
Aunt Ethel
Alice Brady
Joe Keefer
Bruce Cabot
Buddy Spencer
Eric Linden
Tex
Gordon Jones
Lola McArdle
Dorothy Appleby
Milly Adams
Barbara Pepper
Mr. Keefer
J. Farrell MacDonald
Mrs. Keefer
Bodil Rosing
Director
Sam Wood
Writer
Elmer Harris
Joseph Moncure March