Jeremy Foley

as Casper (voice)

Brendon Ryan Barrett

as Chris Carson

Steve Guttenberg

as Tim Carson

Lori Loughlin

as Sheila Fistergraff

Rodney Dangerfield

as Johnny Hunt

Shannon Chandler

as Jennifer

Michael McKean

as Bill Case

Richard Moll

as Principal Rabie

Jim Ward

as Stretch (voice)

Bill Farmer

as Stinky (voice)

Jess Harnell

as Fatso (voice)

Pauly Shore

as Snivel (voice)

James Earl Jones

as Kibosh (voice)

Debi Mazar

as Angie Lyons

Sherman Hemsley

as Grocer

Steven Hartman

as Brock Lee

Logan Robbins

as Danny

D'Juan Watts

as Leon

Ben Stein

as Grocer

Brian Doyle-Murray

as Foreman Dave

Casper Van Dien

as Bystander

Edie McClurg

as Librarian

Rodger Halston

as Stan

Michael McDonald

as Sarcastic Protester

Manny Fernandez

as Frustrated Protester

Michael Spagnoli

as Fearful Protester

Rick Dean

as Punk

Patricia Elliott

as Mortified Teacher

Shell Danielson

as Newscaster

Phillip Connery

as Driver

William Kendall

as Passenger

Dawn Howard

as Frightened Shopper

Emily Jennifer Grunfeld

as Little Girl

Janet Wood

as Talkative Mom

Brendan O'Brien

as Terrified Worker

David Kloser

as Terrified Worker #2

Danny Weselis

as Father

Casey Dolkas

as Son (as Casey Ryan)

Janet Rotblatt

as Little Old Lady

Jennifer Prettyman