Jeff Wilburn

Self - Narrator (voice)

Charles Walker

Self - Payload Specialist, 1984-1985

Stephanie Stilson

Self - Discovery Flow Director, NASA

Valerie Neal

Self - Curator, National Air and Space Museum

Kenneth S. Reightler Jr.

Self - Astronaut, 1988-1994 (as Ken Reightler)

Frank L. Culbertson Jr.

Self - Astronaut, 1985-2001 (as Frank Culbertson)

William F. Readdy

Self - Astronaut, 1987-1996 (as Bill Readdy)

Malcolm Collum

Self - Chief Conservator, National Air and Space Museum

Kathryn Thornton

Self - Astronaut, 1985-1995

Pamela A. Melroy

Self - Astronaut, 1995-2007 (as Pam Melroy)

Mike Parrish

Self - Kennedy Space Center

Cliff Semonski

Self - Kennedy Space Center

Tim Keyser

Self - Kennedy Space Center

Tony Sabatino

Self - Kennedy Space Center

Ray Zink

Self - Kennedy Space Center

Carl E. Walz

Self - Astronaut, 1990-2002 (as Carl Walz)

Kathryn D. Sullivan

Self - Astronaut, 1979-1992 (as Kathy Sullivan)

Rich Kowalczyk

Self - Chief Preservation and Restoration Unit

Frederick Gregory

Self - Astronaut, 1978-1991 (as Fred Gregory)

John Glenn

Self - Astronaut, 1959-1962 & 1998

Eileen Collins

Self - Astronaut, 1991-2005

Charles F. Bolden Jr.

Self - NASA Administrator