Montgomery Clift

Sigmund Freud

Susannah York

Cecily Koertner

Larry Parks

Dr. Joseph Breuer

Susan Kohner

Martha Freud

Eileen Herlie

Frau Ida Koertner

Fernand Ledoux

Dr. Charcot

David McCallum

Carl von Schlossen

Rosalie Crutchley

Frau Amalia Freud

David Kossoff

Jacob Freud

Joseph Fürst

Herr Jacob Koertner

Alexander Mango

Babinsky

Leonard Sachs

Brouhardier

Eric Portman

Dr. Theodore Meynert

John Huston

Narrator (voice) (uncredited)

Ol Abdou

(uncredited)

Manfred Andrae

Student Doctor (uncredited)

Victor Beaumont

Dr. Guber (uncredited)

Allan Cuthbertson

Wilkie (uncredited)

Eduard Linkers

Dr. Torsch (uncredited)

Ferdy Mayne

Questioner at Final Lecture (uncredited)

Elisabeth Neumann-Viertel

Frau Bernays (uncredited)

Maria Perschy

Magda (uncredited)

Moira Redmond

Nora Wimmer (uncredited)

Charles Regnier

(uncredited)

Stefan Schnabel

Chairman of Medical Profession in Vienna (uncredited)