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