Christina Ricci character Kathleen 'Kat' Harvey
Bill Pullman character Dr. James Harvey
Devon Sawa character Casper on Screen
Cathy Moriarty character Carrigan Crittenden
Eric Idle character Paul 'Dibbs' Plutzker
Joe Nipote character Stretch (voice)
Joe Alaskey character Stinkie (voice)
Brad Garrett character Fatso (voice)
Garette Ratliff Henson character Vic DePhillippi
Jessica Wesson character Amber Whitmire
Amy Brenneman character Amelia Harvey
Malachi Pearson character Casper (McFadden) (voice)
Chauncey Leopardi character Nicky
Spencer Vrooman character Andreas
Ben Stein character Mr. Rugg
Don Novello character Father Guido Sarducci
Terry Murphy character Herself ('Hard Copy')
Ernestine Mercer character Harvey Patient 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
Fred Rogers character Mr. Rogers (archive footage) (as Mr. Rogers)
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)
Tony Stef'Ano character Kid at Party (uncredited)
