
Narrator (voice)
John Nesbitt
Dr. Semmelweis
Shepperd Strudwick
Doctor (uncredited)
Rudolph Anders
Passerby (uncredited)
King Baggot
Passerby (uncredited)
William Bailey
Nun Reading Book (uncredited)
Barbara Bedford
Medical Student at Lecture (uncredited)
Ralph Brooks
Young Stricken Mother (uncredited)
Mary Howard
Semmelweis' Assistant (uncredited)
Leonard Penn
Passerby (uncredited)
Beatrice Roberts
Hospital Chief of Staff (uncredited)
Edward Van Sloan
Professor (uncredited)
E. Alyn Warren