Christina Ricci

Character: Kat

Bill Pullman

Character: Dr. James Harvey

Cathy Moriarty

Character: Carrigan

Eric Idle

Character: Dibs

Malachi Pearson

Character: Casper (voice)

Joe Alaskey

Character: Stinkie (voice)

Joe Nipote

Character: Stretch (voice)

Brad Garrett

Character: Fatso (voice)

Devon Sawa

Character: Casper on Screen

Chauncey Leopardi

Character: Nicky

Spencer Vrooman

Character: Andreas

Garette Ratliff Henson

Character: Vic DePhillippi

Jessica Wesson

Character: Amber Whitmire

Amy Brenneman

Character: Amelia Harvey

Ben Stein

Character: Mr. Rugg

Don Novello

Character: Father Guido Sarducci

Terry Murphy

Character: Terry Murphy ('Hard Copy')

Ernestine Mercer

Character: Woman Being Interviewed

Doug Bruckner

Character: Reporter (voice)

John Kassir

Character: The Crypt Keeper (voice)

Wesley Thompson

Character: Mr. Curtis

Michael Dubrow

Character: Student #1

J.J. Anderson

Character: Student #2

Jess Harnell

Character: Arnold (voice)

Michael McCarty

Character: Drunk in Bar

Micah Winkelspecht

Character: Student

Mike Simmrin

Character: Phantom

Dan Aykroyd

Character: Dr. Raymond Stantz (uncredited)

Rodney Dangerfield

Character: Rodney Dangerfield (uncredited)

Clint Eastwood

Character: Clint Eastwood (uncredited)

Mel Gibson

Character: Mel Gibson (uncredited)

Elise Main

Character: Little Red Riding Hood (uncredited)

Bill Farmer

Character: Fatso's Burping (uncredited)

Harry Shearer

Character: Radio announcer (uncredited)