A space shuttle crashes containing a lethal prototype organism designed to survive in any environment. The only people who can stop the creature are the Secretary of Defense agent and the female scientist who created it.
Mike Connors
Patrick Muldoon
Dr. Nancy Burnham
Theresa Russell
Keach
Curtis Armstrong
Sid Bream
Tamara Davies
Diane Cafferty
Lydie Denier
Simpkins
John Beck
Sgt. Tulley
Joe Avalon
Alan Stanton
Daniel Quinn
MP 1
James Cromwell
MP 2
Joe Sabatino
Steve Elkins
Billy Keane
Dr. Shoup
Rod McCary
Chelsea
Lorissa McComas
General Cartwright
William Langlois
Chambers (Head of NASA)
Andy Milder
Gonzales
Rene Rivera
Sheriff Morgan
Tim Thomerson
Deputy Ferguson
Eric James Virgets
Mr. Norton
Steve Purnick
Crewman Terrance
Adam Lieberman
Crewman Miller
Dwayne Shattuck
Local Man
Redmond Gleeson
Girl by Pool (uncredited)
GiGi Erneta
Crewman Mitchell
Todd Kimsey