What profession did Charles Brabin and Karl Freund share?
Charles Brabin Charles J. Brabin (April 17, 1882 – November 3, 1957) was an American film director and screenwriter.
Karl Leonhard Karl Leonhard (21 March 1904 – 23 April 1988) was a German psychiatrist who was a student and collaborator of Karl Kleist, who himself stood in the tradition of Carl Wernicke. With Kleist, he created a complex classification of psychotic illnesses called Nosology. His work covered psychology, psychotherapy, biological psychiatry and biological psychology. Moreover, he created a classification of nonverbal communication.