Cast
Jaromir Astl
Self
Jeremy Bernstein
Self
Arthur C. Clarke
Self
Ed Creutz
Self
Freeman Dyson
Self
George Dyson
Self
Edward B. Giller
Self
Jonathan Kydd
Narrator
Thomas Macken
Self
Harris Mayer
Self
Donald I. Prickett
Self
Johndale Solem
Self
Theodore B. Taylor
Self
David Weiss
Self