Dr. Ehrlich's Magic Bullet

Dr. Paul Ehrlich

Edward G. Robinson

Mrs. Ehrlich

Ruth Gordon

Dr. Emil Von Behring

Otto Kruger

Minister Althoff

Donald Crisp

Franziska Speyer

Maria Ouspenskaya

Professor Hartmann

Montagu Love

Dr. Hans Wolfert

Sig Ruman

Mittelmeyer

Donald Meek

Dr. Lentz

Henry O'Neill

Dr. Robert Koch

Albert Bassermann

Dr. Morgenroth

Edward Norris

Judge

Harry Davenport

Dr. Brockdorf

Louis Calhern

Dr. Kunze

Louis Jean Heydt

Sensenbrenner

Charles Halton

Becker

Irving Bacon

Speidler

Douglas Wood

Dr. Kraus

Theodore von Eltz

Miss Marquardt

Hermine Sterler

Hospital Attendant

Louis Adlon

Medical Assistant

Herbert Anderson

Dr. Bertheim

Louis V. Arco

Martl

Egon Brecher

Haupt

Cliff Clark

Mother

Gretl Dupont

Nurse

Lisa Golm

Hirsch

John Hamilton

Court Clerk

Ludwig Hardt

Dr. Hata

Wilfred Hari

Defense Attorney

Paul Harvey

Hans Weisgart

Ernst Hauessermann

Dr. Bucher

John Henrick

Male Nurse

Stuart Holmes

Banker

Frank Jaquet

Arab Man

Frank Lackteen

Patient

Rolf Lindau

Assistant in Hospital

Frank Mayo

Court Stenographer

Frederic Mellinger

Female Nurse

Greta Meyer

Kadereit

Torben Meyer

Dr. Virchow

Howard M. Mitchell

Stable Boy

Norman Phillips Jr.

Patient

Paul Phillips

Old Man

Frank Reicher

Nurse

Hedwiga Reicher

Arab Woman

Elaine Renshaw

Doctor

Walter O. Stahl

Merk - Patient

Robert R. Stephenson

Steffi

Rolla Stewart

Koerner

Robert Strange

Marianne

Ann E. Todd

Doctor

Brandon Tynan

Officer

Wilhelm von Brincken

Mother

Gisela Werbisek

Kellner

Wolfgang Zilzer