演员
John Nesbitt
Narrator (voice)
Matthew Boulton
Dr. Edward Jenner (uncredited)
Helen Brown
Mary Phipps (uncredited)
Harry Cording
Village Dairyman (uncredited)
Fay Helm
Mrs. Edward Jenner (uncredited)
Raymond Severn
Little Jim Phipps (uncredited)
William Tannen
Sarah's Sweetheart (uncredited)
