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