A young astrophysicist searches for sinister extraterrestrials looking for sanctuary for their comrades by possessing the bodies of humans.
Dr. Scott Dryden
Leonard Nero
Gwendolyn O'Brien
Joyce Cummings
Timmy Garner
Harve Nelson
Sue Garner
Eldon Gates
Russ Garner
Chuck Polcheck
Lt. Col. John Sebastian
Bert Fowler
Patrolman Ashley
Frank Foley
Patrolman Strong
Dr. Conley
Technician
Intern
Teacher
Waitress
Floyd
Girl Student
Waiter
Security Guard
Orderly
Professor Reeve (uncredited)
