Arthur Hill

Dr. Jeremy Stone

David Wayne

Dr. Charles Dutton

James Olson

Dr. Mark Hall

Kate Reid

Dr. Ruth Leavitt

Paula Kelly

Karen Anson

George Mitchell

Jackson

Ramon Bieri

Major Manchek

Peter Hobbs

General Sparks

Kermit Murdock

Dr. Robertson

Richard O'Brien

Grimes

Eric Christmas

Senator from Vermont

Mark Jenkins

Lt. Shawn (Piedmont team)

Peter Helm

Sgt. Crane (Piedmont team)

Joe Di Reda

Wildfire Computer Sgt. Burk

Carl Reindel

Lt. Comroe

Ken Swofford

Toby (technician)

Frances Reid

Clara Dutton

Richard Bull

Air Force Major

John Carter

MP Capt. Morton

Glenn Langan

Cabinet Secretary (uncredited)

Sandra de Bruin

Technician (uncredited)

Susan Brown

Allison Stone (uncredited)

Bart La Rue

Medic Captain (uncredited)

Walter Brooke

Assistant to Cabinet Secretary (uncredited)

Jan Burrell

Mother - Piedmont (uncredited)

Dee Carroll

Technician (uncredited)

Michael Crichton

Bearded Surgeon (uncredited)

David McLean

Sen. McKenzie (uncredited)

Emory Parnell

Pete 'Old Doughboy' Arnold (uncredited)

Michael Pataki

Operator of 'The Hand' (uncredited)

Quinn K. Redeker

Capt. Morris (uncredited)

Garry Walberg

Technician (uncredited)

Len Wayland

Utah Crash Site Officer (uncredited)

Jason Johnson

Dr. Benedict (uncredited)

Ivor Barry

Murray (uncredited)

Lance Fuller

Man (uncredited)

Don Messick

Alarm (voice) (uncredited)

Joan Swift

Decontamination Receptionist (uncredited)

Alma Platt

Woman (uncredited)

Paul Ballantyne

Hospital Director (uncredited)

Benjie Bancroft

Police Officer (uncredited)

Joe Billings

Scientist (uncredited)

Patty Bodeen

Girl (uncredited)

Michael Bow

MP at Stone's (uncredited)

Duke Cigrang

Father - Piedmont (uncredited)

Rhodie Cogan

Minor Role (uncredited)

Lisa Daniels

Woman (uncredited)

Bill Dunbar

Vandenberg AFB Sergeant (uncredited)

Harold Dyrenforth

Minor Role (uncredited)

Walker Edmiston

Voice (voice) (uncredited)

Sandra Ego

Girl (uncredited)

Don Ellis

Minor Role (uncredited)

Judy Farrell

Pam (uncredited)

James W. Gavin

Dempsey - Helicopter Pilot (uncredited)

Sheila Jo Guthrie

Girl - Piedmont (uncredited)

Robert L. Hughes

Air Force Technician (uncredited)

Jamie Lamb

Boy - Piedmont (uncredited)

Johnny Lee

Boy (uncredited)

Theodore Lehmann

Scientist (uncredited)

Tom McDonough

Stetson (uncredited)

Cliff Medaugh

Civilian (uncredited)

Victoria Paige Meyerink

Minor Role (uncredited)

Midori

Bess - Lab Technician (uncredited)

Carl B. Morrison

Minor Role (uncredited)

Francisco Ortega

Gateman at Agricultural Center (uncredited)

Georgia Schmidt

Old Lady - Piedmont (uncredited)

Reuben Singer

Dr. Rudolph Karp (uncredited)

Gilchrist Stuart

Man (uncredited)

Lorna Thayer

Woman (uncredited)

Gary Waynesmith

Air Force Technician (uncredited)

Russ Whiteman

Civilian (uncredited)

John W. Holmes

Editor

Richard H. Kline

Director of Photography

Robert Wise

Director

Robert Wise

Producer

Nelson Gidding

Screenplay

Stuart Gilmore

Editor

Michael Crichton

Novel

Gil Mellé

Original Music Composer

Waldon O. Watson

Sound

James R. Alexander

Sound

Ronald Pierce

Sound

Whitey McMahon

Special Effects

Ruby R. Levitt

Set Decoration

Helen Colvig

Costume Design

William H. Tuntke

Art Direction

Bud Westmore

Makeup Artist

Boris Leven

Production Design

Larry Germain

Hairstylist

Jamie Shourt

Visual Effects

Douglas Trumbull

Visual Effects

Albert Whitlock

Visual Effects

Kenneth Smith

Grip

Richard Blair

Makeup Artist

Ernest B. Wehmeyer

Production Manager

Charles Clement

Post Production Supervisor

Ridgeway Callow

Assistant Director

James Fargo

Second Assistant Director

Walter Dominguez

Assistant Director Trainee

Thomas J. Wright

Production Illustrator

Ed Keyes

Property Master

William Griffith

Sound Recordist

Joseph Kite

Cableman

Johnny Borgese

Special Effects

Paul Stader

Stunts

Eric D. Andersen

Assistant Camera

Larry Barbier

Still Photographer

Mike Benson

Assistant Camera

James R. Connell

Camera Operator

Everett Lehman

Gaffer

Doug Mathias

Lighting Technician

James Plannette

Lighting Technician

Karl Reed

Key Grip

Ronald Vidor

First Assistant Camera

Robert Ellsworth

Costumer

Grace Kuhn

Costumer

Gil Mellé

Music Arranger

Gil Mellé

Musician

J. Peter Robinson

Musician

Marie Kenney

Script Supervisor

William Koselka

Technical Advisor