Dr. Jeremy Stone

Arthur Hill

Acting

Dr. Charles Dutton

David Wayne

Acting

Dr. Mark Hall

James Olson

Acting

Dr. Ruth Leavitt

Kate Reid

Acting

Karen Anson

Paula Kelly

Acting

Jackson

George Mitchell

Acting

Major Manchek

Ramon Bieri

Acting

General Sparks

Peter Hobbs

Acting

Dr. Robertson

Kermit Murdock

Acting

Grimes

Richard O'Brien

Acting

Senator from Vermont

Eric Christmas

Acting

Lt. Shawn (Piedmont team)

Mark Jenkins

Acting

Sgt. Crane (Piedmont team)

Peter Helm

Acting

Wildfire Computer Sgt. Burk

Joe Di Reda

Acting

Lt. Comroe

Carl Reindel

Acting

Toby (technician)

Ken Swofford

Acting

Clara Dutton

Frances Reid

Acting

Air Force Major

Richard Bull

Acting

MP Capt. Morton

John Carter

Acting

Cabinet Secretary (uncredited)

Glenn Langan

Acting

Technician (uncredited)

Sandra de Bruin

Acting

Allison Stone (uncredited)

Susan Brown

Acting

Medic Captain (uncredited)

Bart La Rue

Acting

Assistant to Cabinet Secretary (uncredited)

Walter Brooke

Acting

Mother - Piedmont (uncredited)

Jan Burrell

Acting

Technician (uncredited)

Dee Carroll

Acting

Bearded Surgeon (uncredited)

Michael Crichton

Writing

Sen. McKenzie (uncredited)

David McLean

Acting

Pete 'Old Doughboy' Arnold (uncredited)

Emory Parnell

Acting

Operator of 'The Hand' (uncredited)

Michael Pataki

Acting

Capt. Morris (uncredited)

Quinn K. Redeker

Acting

Technician (uncredited)

Garry Walberg

Acting

Utah Crash Site Officer (uncredited)

Len Wayland

Acting

Dr. Benedict (uncredited)

Jason Johnson

Acting

Murray (uncredited)

Ivor Barry

Acting

Man (uncredited)

Lance Fuller

Acting

Alarm (voice) (uncredited)

Don Messick

Acting

Decontamination Receptionist (uncredited)

Joan Swift

Acting

Woman (uncredited)

Alma Platt

Acting

Hospital Director (uncredited)

Paul Ballantyne

Acting

Police Officer (uncredited)

Benjie Bancroft

Acting

Scientist (uncredited)

Joe Billings

Acting

Girl (uncredited)

Patty Bodeen

Acting

MP at Stone's (uncredited)

Michael Bow

Acting

Father - Piedmont (uncredited)

Duke Cigrang

Acting

Minor Role (uncredited)

Rhodie Cogan

Acting

Woman (uncredited)

Lisa Daniels

Acting

Vandenberg AFB Sergeant (uncredited)

Bill Dunbar

Acting

Minor Role (uncredited)

Harold Dyrenforth

Acting

Voice (voice) (uncredited)

Walker Edmiston

Acting

Girl (uncredited)

Sandra Ego

Acting

Minor Role (uncredited)

Don Ellis

Sound

Pam (uncredited)

Judy Farrell

Acting

Dempsey - Helicopter Pilot (uncredited)

James W. Gavin

Acting

Girl - Piedmont (uncredited)

Sheila Jo Guthrie

Acting

Air Force Technician (uncredited)

Robert L. Hughes

Acting

Boy - Piedmont (uncredited)

Jamie Lamb

Acting

Boy (uncredited)

Johnny Lee

Acting

Scientist (uncredited)

Theodore Lehmann

Acting

Stetson (uncredited)

Tom McDonough

Acting

Civilian (uncredited)

Cliff Medaugh

Acting

Minor Role (uncredited)

Victoria Paige Meyerink

Acting

Bess - Lab Technician (uncredited)

Midori

Acting

Minor Role (uncredited)

Carl B. Morrison

Acting

Gateman at Agricultural Center (uncredited)

Francisco Ortega

Acting

Old Lady - Piedmont (uncredited)

Georgia Schmidt

Acting

Dr. Rudolph Karp (uncredited)

Reuben Singer

Acting

Man (uncredited)

Gilchrist Stuart

Acting

Woman (uncredited)

Lorna Thayer

Acting

Air Force Technician (uncredited)

Gary Waynesmith

Acting

Civilian (uncredited)

Russ Whiteman

Acting