Joe Acaba
Loren Acton (L)
James Adamson (L)
Buzz Aldrin (L)
Joseph Allen (L)
Scott Altman
Bill Anders (L)
Clayton Anderson (L)
Anousheh Ansari (L)
Tony Antonelli
Jay Apt (L)
Richard Arnold II
Jeffrey Ashby (L)
James Bagian (L)
Michael Baker (L)
Michael Barratt
Daniel Barry (L)
John-David Bartoe (L)
Robert Behnken
John Blaha
Mike Bloomfield (L)
Karol Bobko (DM / L)
Eric Boe
Charles Bolden, Jr. (L)
Stephen Bowen
Kenneth Bowersox (L)
Vance Brand
Daniel Brandenstein (L)
Randy Bresnik (L)
Roy Bridges, Jr. (L)
Mark Brown
James Buchli (L)
Jay Buckey, Jr. (L)
Daniel Burbank
Daniel Bursch
Robert Cabana (L)
Tracy Caldwell-Dyson
Charles Camarda (L)
Kenneth Cameron (L)
Duane Carey
M. Scott Carpenter †
Gerald Carr †
Manley Carter †
John Casper
Christopher Cassidy
Robert Cenker (L)
Eugene Cernan †
Gregory Chamitoff
Kalpana Chawla †
Leroy Chiao
Mary Cleave (L)
Michael Clifford (L)
Michael Coats (L)
Cady Coleman (L)
Eileen Collins (L)
Michael Collins
Charles Conrad, Jr. †
Richard Covey (L)
John Creighton (L)
Robert Crippen (L)
Roger Crouch (L)
Frank Culbertson, Jr. (L)