乔伊·克莱默
Joey Cramer
饰:大卫 David Scott Freeman
保罗·雷宾斯
Paul Reubens
饰:马克斯 Trimaxion,Max (as Paul Mall)
克利夫·德杨
Cliff De Young
饰:Bill Freeman
维罗尼卡·卡维特
Veronica Cartwright
饰:Helen Freeman
莎拉·杰茜卡·帕克
Sarah Jessica Parker
饰:Carolyn McAdams
Albie Whitaker
饰:Jeff Freeman (8 Years)
马特·阿德勒
Matt Adler
饰:Jeff Freeman (16 Years)
霍华德·海瑟曼
Howard Hesseman
饰:Dr. Louis Faraday
罗伯特·斯莫尔
Robert Small
饰:Troy
Raymond Forchion
Raymond Forchion
饰:Detective Banks
理查德·雷伯蒂
Richard Liberty
饰:Mr. Howard
乔纳森·桑格
Jonathan Sanger
饰:Dr. Carr
Iris Acker
饰:Mrs. Howard
Cynthia Caquelin
Cynthia Caquelin
饰:Woman Officer
Ted Bartsch
饰:Night Guard Brayton
Gizelle Elliott
饰:Female Technician #1
Brigid Cleary
Brigid Cleary
饰:Female Technician #2
Michael Strano
饰:Technician #3
Parris Buckner
Parris Buckner
饰:Scientist #1
Robyn Peterson
饰:Scientist #2
Tony Tracy
饰:Observation Guard
Philip Hoelcher
饰:NASA Officer
胡里奥·奥斯卡·门乔索
Julio Oscar Mechoso
饰:Hangar Guard #1
Butch Raymond
饰:Hangar Guard #2
Bob Strickland
饰:Control Room Guard #1
迈克尔·布罗克曼
Michael Brockman
饰:Control Room Guard #2
Louis Cutolo
饰:Radar Technician #1
Debbie Casperson
饰:Radar Technician #2
Chase Randolph
饰:Lieutenant King
John Archie
John Archie
饰:Agent #1
Rusty Pouch
饰:Big Al, Gas Station Attendant
Robert Goodman
饰:Tourist Man
Ryan Murray
饰:Tourist Boy
Keri Rogers
饰:Jennifer Bradley
Peter Lindquist
饰:Newscaster #1
Jill Beach
饰:Newscaster #2
Kenneth Ian Davis
饰:Kid in Mustang
Bruce Lake
饰:Bixby
Arnie Ross
饰:NASA Technician #1
Fritz Brauner
饰:NASA Technician #2
蒂姆·布莱尼
Tim Blaney
饰:Puppeteer
Tony Urbano
饰:Puppeteer
Tony Calvino
饰:Agent #2
Fritz Bronner
Fritz Bronner
饰:NASA Technician #2,(as Fritz Brauner)