Chuck Yeager 山姆·谢泼德

Alan Shepard 斯科特·格伦

John Glenn 艾德·哈里斯

Gordon Cooper 丹尼斯·奎德

Gus Grissom 弗雷德·沃德

Glennis Yeager 芭芭拉·赫希

Pancho Barnes Kim Stanley

Betty Grissom 维罗尼卡·卡维特

Trudy Cooper 帕梅拉·里德

Deke Slayton 斯科特·波林

Scott Carpenter Charles Frank

Wally Schirra 兰斯·亨利克森

Lyndon B. Johnson 唐纳德·莫法特

Jack Ridley / Narrator Levon Helm

Annie Glenn Mary Jo Deschanel

Scott Crossfield 斯科特·威尔森

Louise Shepard 凯西·贝克

Marge Slayton Mickey Crocker

Rene Carpenter Susan Kase

Jo Schirra Mittie Smith

Minister 罗亚尔·达诺

Liaison Man 大卫·克伦侬

Air Force Major 吉姆·海尼

NASA Recruiter 杰夫·高布伦

NASA Recruiter 哈里·希勒

Chief Scientist Scott Beach

Nurse Murch Jane Dornacker

Gonzales Anthony Munoz

Head of Program John P. Ryan

Life Reporter Darryl Henriques

Himself Eric Sevareid

Slick Goodlin William Russ

The Permanent Press Corps 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

Grand Designer 爱德华·安哈尔特

Woman Reporter Mary Apick

Dwight D. Eisenhower Robert Beer

Eddie Hodges Erik Bergmann

Aide to Lyndon B. Johnson James Brady

Woman TV Reporter Katherine Conklin

Waitress Maureen Coyne

Bell Aircraft Executive Tom Dahlgren

Bell Aircraft Executive John Lion

Sally Rand Peggy Davis

Henry Luce John Dehner

Review Board President Robert Elross

Assistant Scientist Drew Eshelman

Game Show M.C. Robert J. Geary

1st X-1 Pilot Royce Grones

Aborigine 大卫·古皮利

Australian Driver Anthony Wallis

Young Widow Kaaren Lee

Cocoa Beach Girl Sandy Kronemeyer

Cocoa Beach Girl Frankie Di

Texan Michael Pritchard

Texan Edward Corbett

Girl at Pancho's O-Lan Jones

Astronaut Trainee Mark Todd

Astronaut Trainee Allen Gebhardt

Fred Chuck Yeager

New Mexico Nurse in Lobby (uncredited) Mimi Sarkisian