Jeff Wilburn

as Self - Narrator (voice)

Charles Walker

as Self - Payload Specialist, 1984-1985

Stephanie Stilson

as Self - Discovery Flow Director, NASA

Valerie Neal

as Self - Curator, National Air and Space Museum

Kenneth S. Reightler Jr.

as Self - Astronaut, 1988-1994

Frank Culbertson

as Self - Astronaut, 1985-2001

William F. Readdy

as Self - Astronaut, 1987-1996

Malcolm Collum

as Self - Chief Conservator, National Air and Space Museum