Anthony Munoz
Gonzalez

Barbara Hershey
Glennis Yeager

Charles Frank
Malcolm Scott Carpenter

Dennis Quaid
Leroy Gordon Cooper Jr.

Donald Moffat
Lyndon B. Johnson

Ed Harris
John Herschel Glenn Jr.

Fred Ward
Virgil Ivan «Gus» Grissom

Jane Dornacker
Infirmière Murch

Jeff Goldblum
Recruteur de la NASA

Kim Stanley
Pancho Barnes

Lance Henriksen
Walter Martin Schirra Jr.

Mary Jo Deschanel
Annie Glenn

Mickey Crocker
Marge Slayton

Pamela Reed
Trudy Cooper

Royal Dano
Minister

Sam Shepard
Chuck Yeager

Scott Glenn
Alan Bartlett Shepard Jr

Scott Paulin
Donald Kent «Deke» Slayton

Scott Wilson
Scott Crossfield

Veronica Cartwright
Betty Grissom

William Russ
Slick Goodlin