Gateways to the Mind

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)