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