Dennis Quaid
Gordon Cooper
Barbara Hershey
Glennis Yeager
Veronica Cartwright
Betty Grissom
Charles Frank
Scott Carpenter
Lance Henriksen
Wally Schirra
Donald Moffat
Lyndon B. Johnson
Levon Helm
Jack Ridley / Narrator
Mary Jo Deschanel
Annie Glenn
Scott Wilson
Scott Crossfield
Kathy Baker
Louise Shepard
Mickey Crocker
Marge Slayton
Jim Haynie
Air Force Major
Jeff Goldblum
NASA Recruiter
Harry Shearer
NASA Recruiter
Scott Beach
Chief Scientist
Jane Dornacker
Nurse Murch
John P. Ryan
Head of Program
Darryl Henriques
Life Reporter
William Russ
Slick Goodlin
Drew Letchworth
The Permanent Press Corps
Christopher P. Beale
The Permanent Press Corps
Richard Dupell
The Permanent Press Corps
William Hall
The Permanent Press Corps
John X. Heart
The Permanent Press Corps
Ed Holmes
The Permanent Press Corps
Jack Bruno Tate
The Permanent Press Corps
Edward Anhalt
Grand Designer
Robert Beer
Dwight D. Eisenhower
Erik Bergmann
Eddie Hodges
James Brady
Aide to Lyndon B. Johnson
Katherine Conklin
Woman TV Reporter
Tom Dahlgren
Bell Aircraft Executive
John Lion
Bell Aircraft Executive
Robert Elross
Review Board President
Drew Eshelman
Assistant Scientist
Robert J. Geary
Game Show M.C.
Royce Grones
1st X-1 Pilot
Anthony Wallis
Australian Driver
Sandy Kronemeyer
Cocoa Beach Girl
Frankie Di
Cocoa Beach Girl
O-Lan Jones
Girl at Pancho's
Mark Todd
Astronaut Trainee
Allen Gebhardt
Astronaut Trainee
Mimi Sarkisian
New Mexico Nurse in Lobby (uncredited)