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