Robert MacNaughton as Michael (as Robert Macnaughton)
Erika Eleniak as Pretty Girl
David M. O'Dell as Schoolboy (as David O'Dell)
Richard Swingler as Science Teacher
Robert Barton as Ultra Sound Man
Michael Darrell as Van Man
David Berkson as Medical Unit (as David Berkson M.D.)
David Carlberg as Medical Unit (as David Carlberg Ph.D.)
Milt Kogan as Medical Unit (as Milt Kogan M.D.)
Alexander Lampone as Medical Unit (as Alexander Lampone M.D.)
Rhoda Makoff as Medical Unit (as Rhoda Makoff M.D.)
Robert D. Murphy as Medical Unit (as Robert Murphy M.D.)
Richard Pesavento as Medical Unit (as Richard Pesavento M.D.)
Tom Sherry as Medical Unit (as Tom Sherry M.D.)
Susan Cameron as Medical Unit
Will Fowler Jr. as Medical Unit
Barbara Hartnett as Medical Unit
Diane Lampone as Medical Unit (as Di Ann Lampone)
Mary Stein as Medical Unit
Mitch Suskin as Medical Unit (as Mitchell Suskin)
Alex Daniels as Federal Agent in Car Chase
Ted Grossman as Government Agent
Jean-Paul Hellendall as Student
Kevin Jessup as Scientist
James Kahn as Mustachioed Medical Unit Member who Confirms E.T.'s Death
Michael Lepre as Pizza Man
Gary Ordog as Medical Unit
Robert W. Scholler as Medical Unit
Jonathan Wasserberger as Medical Unit
Richard S. Weisman as Medical Unit
Debra Winger as Nurse Zombie Carrying Poodle