All Cast
Burgess Meredith
Puff the Magic Dragon (voice)
David Mendenhall
Terry (voice)
Joan Gerber
Mother / Teacher (voice)
Bob Holt
Father (voice)
Billy Jayne
Boy (voice)
Diana Dumpis
Girl (voice)
Hal Smith
Professor Katzendorfer / Bust / World (voice)
Robert Ridgely
Mr. Nobody / Guard (voice)