Chinese Magician / Astronaut / Carrot (voice) (uncredited)
June Foray
Flowers (voice) (uncredited)
Paul Frees
Mr. Space / Astronaut (voice) (uncredited)
Charles Lane
Man-in-street interview (uncredited)
John Litel
Priest on street (uncredited)
Sid Melton
Cabdriver (uncredited)
Alan Reed
Man-in-street interview (uncredited)
Danny Thomas
Interviewer / Narrator (uncredited)
Doodles Weaver
Man-in-street interview (uncredited)
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Trivia
This film was produced by the Martin-Marietta Corporation for exhibition at the Hall of Science at the New York World's Fair, where it played well in the 1970's.