Narrator (voice)
John Nesbitt
Dr. Semmelweis
Shepperd Strudwick
Hospital Chief of Staff (uncredited)
Edward Van Sloan
Professor (uncredited)
E. Alyn Warren
Doctor (uncredited)
Rudolph Anders
Passerby (uncredited)
King Baggot
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
Beatrice Roberts
Producer
Director
Fred Zinnemann
Music
David Snell
Director of Photography
Harold Rosson
Screenplay
Herman Boxer
Orchestrator
George Bassman
Leonid Raab