David Cassidy

Adam-11

Olivia d'Abo

Chanel-6

Steven Shane McDonald

Tommy Sears

Jeffrey McDonald

Chris Johnson

Geoff Hoyle

Heinz-57

Leif Garrett

Eddie Trojan

Liam O'Brien

Rodney Snodgrass

Mark Mothersbaugh

Chevron-17

Gerald V. Casale

Yale-44

Carl Reiner

Dr. Von Mobil

Bob Casale

Ron-29

David Kendrick

Ron-31

Rob Reiner

Dr. Cash

Moon Unit Zappa

Cheryl Dickman

Tommy Chong

Stoner

Shelby Chong

Cashier

Barbara Bain

Hipster

Julie Brown

Ms. Liberty

Iron Eyes Cody

Iron Eyes Cody

Sofia Coppola

Girl in Parade

Nancye Ferguson

Nurse

Ann Block

Chris' Mom

Martin von Haselberg

Agent 1

Brian Routh

Agent 2

Maud Winchester

Cyndi the Waitress

Lorri Holt

Cop #1

Jerry Carlton

Streaker

Todd A. Rolle

Clovis

Don Novello

Translator

Lucas Reiner

Fireworks Barker

Michael McShane

Angry Driver

Morgan Upton

Teacher

Leigh French

Voice of the Future

Charles Dean

Chris' Dad

Michael Jerome West

Guard (as Tree)

Ryan Wallace

Chester

Lisa Houston

Heckler

Jack Blessing

Voice Talent (voice)

Lisa Michelson

Voice Talent (voice)

Tracy Newman

Voice Talent (voice)

Gregory Snegoff

Voice Talent (voice)

Jonathan Stark

Voice Talent (voice)

Arnold F. Turner

Voice Talent (voice)

Ian Davidson

Guy outside disco (uncredited)

Mikael Johnston

Dancer (uncredited)

Markus Maguire

Date Male Restaurant/ Onlooker at Science Fair (uncredited)

Tyrone M. Sanders

Dancer (uncredited)