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