The Earth is invaded by alien parasites—AKA 'slugs'—that ride on people's backs and control their minds.
Genres:
Donald Sutherland as Andrew Nivens
Eric Thal as Sam Nivens
Julie Warner as Mary Sefton
Keith David as Alex Holland
Will Patton as Dr. Lawrence Graves
Richard Belzer as Neil Jarvis
Tom Mason as President Douglas
Yaphet Kotto as Ressler
Gerry Bamman as Viscott
Sam Anderson as Culbertson
J. Patrick McCormack as Gidding
Marshall Bell as General Morgan
Nicholas Cascone as Greenberg
Bruce Jarchow as Barnes
Benjamin Mouton as Higgins
Donna Garrett as Miss Haines
Andrew Robinson as Hawthorne
Bill Blair as Slugged Businessman (uncredited)
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