+3The Andromeda Strain

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)