Devon Werkheiser
Casper / Casper's Shadow (voice)
Brett DelBuono
Jimmy (voice)
John DiMaggio
Stinkie / Frankengymteacher (voice)
Billy West
Fatso / Figurehead (voice)
Dan Castellaneta
Stretch (voice)
Kevin Michael Richardson
Kibosh (voice)
Matthew Underwood
Thatch (voice)
Christy Carlson Romano
Mantha (voice)
Nika Futterman
Monaco (voice)
Debi Derryberry
Banana Lady / History Teacher / Additional Voices (voice)
Pat Fraley
Scare Center Host 1 / Wolfie / Narrator / Werewolf / Additional Voices (voice)
Scott Menville
Punk Kid / Scare Center Host 2 / Pumpkinhead / Brainiac / Pool Guy / Hunchback / Additional Voices (voice)
Maurice LaMarche
Pirate / Thurdigree Burns (voice)
Kevin McDonald
Parrot (voice)
Terri Douglas
Fish Boy / Drip / Additional Voices (voice)
John Kassir
P.A. Voice / Additional Voices (voice)
Phyllis Diller
Aunt Spitzy (voice)
Jason Harris
Gargoyle / Flyboy / Skinny Ghost / Coach / Additional Voices (voice)
Daryl Dragon
Murray (voice)
Toni Tennille
Belle (voice)
Danny Cooksey
Additional Voices (voice)
Fred Tatasciore
Additional Voices (voice)
