Diễn viên
Douglas Wood
Speidler
Theodore von Eltz
Dr. Kraus
Louis Adlon
Hospital Attendant
Herbert Anderson
Medical Assistant
Cliff Clark
Haupt
Edward G. Robinson
Dr. Paul Ehrlich
Otto Kruger
Dr. Emil Von Behring
Sig Ruman
Dr. Hans Wolfert
Stuart Holmes
Male Nurse
Frank Mayo
Assistant in Hospital
Greta Meyer
Female Nurse
Ruth Gordon
Mrs. Ehrlich
Hermine Sterler
Miss Marquardt
Howard M. Mitchell
Dr. Virchow
Frank Reicher
Old Man
Ann E. Todd
Marianne
Paul Harvey
Defense Attorney
Torben Meyer
Kadereit
Hedwiga Reicher
Nurse
Robert Strange
Koerner
Wolfgang Zilzer
Kellner
Donald Crisp
Minister Althoff
Harry Davenport
Judge
Louis Calhern
Dr. Brockdorf
Irving Bacon
Becker
Frank Jaquet
Banker
Frank Lackteen
Arab Man
John Hamilton
Hirsch
Edward Norris
Dr. Morgenroth
Henry O'Neill
Dr. Lentz
Louis Jean Heydt
Dr. Kunze
Lisa Golm
Nurse
Brandon Tynan
Doctor
Montagu Love
Professor Hartmann
Donald Meek
Mittelmeyer
Charles Halton
Sensenbrenner
Egon Brecher
Martl
Wilhelm von Brincken
Officer
Maria Ouspenskaya
Franziska Speyer
Albert Bassermann
Dr. Robert Koch