Casper

Christina Ricci

Kathleen 'Kat' Harvey

Bill Pullman

Dr. James Harvey

Malachi Pearson

Casper (voice)

Cathy Moriarty

Carrigan Crittenden

Eric Idle

Paul 'Dibbs' Plutzker

Joe Alaskey

Stinkie (voice)

Joe Nipote

Stretch (voice)

Brad Garrett

Fatso (voice)

Chauncey Leopardi

Nicky

Spencer Vrooman

Andreas

Devon Sawa

Casper on Screen

Garette Ratliff Henson

Vic DePhillippi

Jessica Wesson

Amber Whitmire

Amy Brenneman

Amelia Harvey

Ben Stein

Mr. Rugg

Don Novello

Father Guido Sarducci

Terry Murphy

Terry Murphy ('Hard Copy')

Ernestine Mercer

Woman Being Interviewed

Doug Bruckner

Reporter (voice)

John Kassir

The Crypt Keeper (voice)

Wesley Thompson

Mr. Curtis

Michael Dubrow

Student #1

J.J. Anderson

Student #2

Jess Harnell

Arnold (voice)