Sean Pertwee
— Narrator
Brian Anderson
— Himself - NASA
Paul Blase
— Himself - TransOrbital
Margaret Curtis
— Herself - Local Historian
Winnifred Cutler
— Herself - Athena Institute
William Fung-Schwarz
— Himself - The Moon Society
Linda Hyder
— Herself - Voyager Navigation Engineer
Peter Kokh
— Himself - President, The Moon Society
Gary Lofgren
— Himself - NASA Planetary Scientist
John Noble Wilford
— Himself - Apollo Correspondent: The New York Times
Don Pettit
— Himself - NASA Astronaut
Greg Olsen
— Himself - Space Tourist
David Rothery
— Himself - The Open University
Stacey Tearne
— Herself - Space Adventures
Jerry Wiant
— Himself - Texas Laser Ranging Station
Leslie Wickman
— Herself - The Moon Society