출연진

• 

  Frank Baxter

  Frank Baxter

  Himself (as Dr. Frank C. Baxter)

• H

  Hadley Cantrell

  Hadley Cantrell

  Himself - Princeton University Psychologist (as Professor Hadley Cantrell)

• 

  Edwin Max

  Edwin Max

  Bill

• W

  Wilder Penfield

  Wilder Penfield

  Himself - Director: Montreal Neurological Institute (as Dr. Wilder Penfield)

• 

  Peter Brown

  Peter Brown

  Aristotle's student (uncredited)