Owen Crump
Director
Henry F. Greenberg
Writer
William L. Kuehl
Set Decoration
Ellis W. Carter
Director of Photography
Donald A. Peters
Art Direction
Fred MacDowell
Editor
Owen Crump
Producer
Frank Baxter
Himself (as Dr. Frank C. Baxter)
Hadley Cantrell
Himself - Princeton University Psychologist (as Professor Hadley Cantrell)
Edwin Max
Bill
Wilder Penfield
Himself - Director: Montreal Neurological Institute (as Dr. Wilder Penfield)
Peter Brown
Aristotle's student (uncredited)
Karl Swenson
Hal - the Cameraman (uncredited)
