夏佩德·斯特鲁德维克

Shepperd Strudwick

饰：Dr. Semmelweis (as Sheppard Strudwick)

John Nesbitt

John Nesbitt

饰：Narrator

Rudolf Anders

Rudolf Anders

饰：Doctor (uncredited)

威廉·拜利

饰：Passerby (uncredited)

芭芭拉·贝德福德

Barbara Bedford

饰：Nun Reading Book (uncredited)

Ralph Brooks

Ralph Brooks

饰：Medical Student at Lecture (uncredited)

Mary Howard

饰：Young Stricken Mother (uncredited)

Leonard Penn

饰：Semmelweis' Assistant (uncredited)

Beatrice Roberts

饰：Passerby (uncredited)

爱德华·范·斯隆

Edward Van Sloan

饰：Hospital Chief of Staff (uncredited)