To Mars by A-Bomb: The Secret History of Project Orion

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