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)