Harry S. Stamper

Bruce Willis

Dan Truman, NASA Administrator

Billy Bob Thornton

Grace Stamper

Liv Tyler

A.J. Frost

Ben Affleck

Lt. General Kimsey

Keith David

Charles "Chick" Chapple

Will Patton

Flight Director Clark

Chris Ellis

Lev Andropov, Russian Cosmonaut

Peter Stormare

Rockhound

Steve Buscemi

Dr. Ronald Quincy, Research

Jason Isaacs

Colonel William Sharp, Shuttle Freedom Pilot

William Fichtner

Oscar Choi, Geologist

Owen Wilson

Jayotis 'Bear' Kurleenbear

Michael Clarke Duncan

Jennifer Watts, Shuttle Freedom Co-Pilot

Jessica Steen

Max Lennert

Ken Campbell

Gruber

Grayson McCouch

Freddy Noonan

Clark Brolly

Colonel Davis

Marshall Teague

Freddy Noonan

Clark Heathcliffe Brolly

Little Guy

Eddie Griffin

Tucker, Shuttle Independence Co-Pilot

Anthony Guidera

Halsey

Greg Collins

Karl

John Mahon

General Boffer

J. Patrick McCormack

Dottie

Grace Zabriskie

NASA Tech

Michael Kaplan

Psychologist

Udo Kier

Astronaut Pete Shelby

Ian Quinn

Asian Tourist (Female)

Seiko Matsuda

Christopher Worret

Hollis Vernon (Grap) Stamper

Lawrence Tierney

Operator #1

Christopher J. Worret

Operator #2

Adam C. Smith

Samoan

K.C. Leomiti

Client #1

Deborah Nishimura

Mark Boone Jr.

Client #2

Albert Wong

Client #3

Jim Ishida

President

Stanley Anderson

Admiral Kelso

James Harper

Helga (the Nurse)

Ellen Cleghorne

Dr. Banks

John Aylward

Stu the Cabbie

Mark Curry

Chuck Jr.

Harry Humphries

Tommy

Dyllan Christopher

Denise

Judith Hoag

Max's Mom

Sage Allen

Nuke Tech

Steven Ford

Droning Guy

Christian Clemenson

Greenpeace Guy

Andy Ryan

Judith Drake

Roughneck #1

Duke Valenti

Roughneck #2

Michael Taliferro

Roughneck #3

Billy Devlin

Newscaster #2

Kathleen Matthews

Newscaster #3

J.C. Hayward

Newscaster #4

Andrew Glassman

NASA Planner #1

Frank Van Keeken

Redhead

Shawnee Smith

FBI Agent #1

Dwight Hicks

Geo Tech #1

Odile Corso

Loanshark

Vic Manni

Biker Customer

Jim Maniaci

Molly Mounds

Layla Roberts

Kennedy Launch

Joe Allen

Odile Broulard

Math Guy

Bodhi Elfman

Newscaster

Alexander Johnson

Reporter #1

Kathy Neff

Sector Director

Victor Vinson

Marine #1

Joseph Patrick Kelly

Secretary of Defense

Peter White

G-Man

Rudy Mettia

NASA Tech

Frederick Weller

NASA Tech

Jeff Austin

NASA Tech

Googy Gress

NASA Tech

Matt Malloy

NASA Tech

H. Richard Greene

NASA Tech

Brian Brophy

NASA Tech

Peter Murnik

NASA Tech

Brian Hayes Currie

Andrew Heckler

NASA Tech

Andy Milder

Dr. Nerd

Patrick Richwood

Dr. Nerd

Brian Mulligan

Pad Director

John H. Johnson

Vacuum Chamber Tech

Charles Stewart

Young Grace

Scarlet Forge

Greg Warmouth

American Newscaster

Michael Tuck

British Newscaster

Patrick Lander

French Newscaster

Anne Varèze

Japanese Newscaster

Fritz Mashimo

John Frazier

Italian Newscaster

Dina Morrone

Spanish Newscaster

Ruben Olague

Narration (voice)

Charlton Heston

German Newscaster

Wolfgang Muser

Max Lennert

Kenneth Hudson Campbell

NORAD Technician

Jim Fitzpatrick

Dog / Little Richard

Franky