On screen
Cast
32 credited performers
Joey Cramer
David Scott Freeman
Paul Reubens
Max (voice)
Veronica Cartwright
Helen Freeman
Cliff DeYoung
Bill Freeman
Sarah Jessica Parker
Carolyn McAdams
Matt Adler
Jeff (16 years)
Howard Hesseman
Dr. Louis Faraday
Robert Small
Troy
Artwork unavailable
Jonathan Sanger
Dr. Carr
Artwork unavailable
Richard Liberty
Mr. Howard
Raymond Forchion
Detective Banks
Artwork unavailable
Cynthia Caquelin
Woman Officer
Ted Bartsch
Night Guard Brayton
Artwork unavailable
Brigid Cleary
Technician #2
Artwork unavailable
Michael Strano
Technician #3
Parris Buckner
Scientist #1
Artwork unavailable
Robyn Peterson
Scientist #2
Artwork unavailable
Philip Hoelcher
NASA Officer
Julio Oscar Mechoso
Hangar Guard #1
Artwork unavailable
Butch Raymond
Hangar Guard #2
Artwork unavailable
Chase Randolph
Lieutenant King
Artwork unavailable
John Archie
Agent #1
Artwork unavailable
Tony Calvino
Agent #2
Artwork unavailable
Rusty Pouch
Gas Station Attendant
Artwork unavailable
Robert Goodman
Tourist Man
Artwork unavailable
Peter Lundquist
Newscaster #1
Artwork unavailable
Jill Beach
Newscaster #2
Artwork unavailable
Kenneth Ian Davis
Kid in Mustang
Artwork unavailable
Arnie Ross
NASA Technician
Artwork unavailable
Fritz Bronner
NASA Technician
Artwork unavailable
Albie Whitaker
Jeff 8 year
Artwork unavailable
Tony Tracy
Observation Guard