Diretor/a
Dan Handley
DIRETOR/A
Elenco (na ordem dos créditos)
Cain Alexander
Young Samuel Langley
Kurt Bell
Self
Robert R. Bell
Josiah King
Len Caric
Harvey Childs
David Conrad
Narrator
Tom D. Crouch
William Fickinger
George Gatewood
Art Glaser
Matthew Green
Wealthy industrialist
Jay Keenan
John Brashear(voice)
Daniel V. Klein
Professor Lewis Bradley
Nick LaMantia
Assistant #1
Henry Lenard
Dr. James Keeler
Demetria Marsh
Julia Smith Brashear(voice)
Jeff Monahan
Dr. Samuel Pierpont Langley
Nancy Robinson
Tom E. Sturgeon
Charles Matthews Manly
Eli Tokash
Young John Langley
Neil deGrasse Tyson
Kristopher Veenis
Assistant #2