Casper / Casper's Shadow (voice)

Devon Werkheiser

Acting

Jimmy (voice)

Brett DelBuono

Acting

Alder (voice)

Jim Belushi

Acting

Dash (voice)

Bob Saget

Acting

Stinkie / Frankengymteacher (voice)

John DiMaggio

Acting

Fatso / Figurehead (voice)

Billy West

Acting

Stretch (voice)

Dan Castellaneta

Acting

Kibosh (voice)

Kevin Michael Richardson

Acting

Thatch (voice)

Matthew Underwood

Acting

Mantha (voice)

Christy Carlson Romano

Acting

Mickey (voice)

Candi Milo

Acting

Monaco (voice)

Nika Futterman

Acting

Ra (voice)

Kendre Berry

Acting

Banana Lady / History Teacher / Additional Voices (voice)

Debi Derryberry

Acting

Scare Center Host 1 / Wolfie / Narrator / Werewolf / Additional Voices (voice)

Pat Fraley

Acting

Punk Kid / Scare Center Host 2 / Pumpkinhead / Brainiac / Pool Guy / Hunchback / Additional Voices (voice)

Scott Menville

Acting

Pirate / Thurdigree Burns (voice)

Maurice LaMarche

Acting

Parrot (voice)

Kevin McDonald

Acting

Fish Boy / Drip / Additional Voices (voice)

Terri Douglas

Production

P.A. Voice / Additional Voices (voice)

John Kassir

Acting

Aunt Spitzy (voice)

Phyllis Diller

Acting

Gargoyle / Flyboy / Skinny Ghost / Coach / Additional Voices (voice)

Jason Harris

Acting

Murray (voice)

Daryl Dragon

Acting

Belle (voice)

Toni Tennille

Acting

Additional Voices (voice)

Danny Cooksey

Acting

Additional Voices (voice)

Fred Tatasciore

Acting