On screen
Cast
7 credited performers
Artwork unavailable
John Nesbitt
Narrator (voice)
Artwork unavailable
Ernie Alexander
Billiard Ball Tester (uncredited)
Artwork unavailable
Margaret Bert
Arachnophobic Woman (uncredited)
Edward McWade
Billiard Ball Tester (uncredited)
Roger Moore
Doctor (uncredited)
Artwork unavailable
Tom Quinn
Laboratory Man (uncredited)
Artwork unavailable
Bert Stevens
Laboratory Man (uncredited)