Devon WerkheiserCasper / Casper's Shadow (voice)

Brett DelBuonoJimmy (voice)

Jim BelushiAlder (voice)

Bob SagetDash (voice)

John DiMaggioStinkie / Frankengymteacher (voice)

Billy WestFatso / Figurehead (voice)

Dan CastellanetaStretch (voice)

Kevin Michael RichardsonKibosh (voice)

Matthew UnderwoodThatch (voice)

Christy Carlson RomanoMantha (voice)

Candi MiloMickey (voice)

Nika FuttermanMonaco (voice)

Kendre BerryRa (voice)

Debi DerryberryBanana Lady / History Teacher / Additional Voices (voice)

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

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

Maurice LaMarchePirate / Thurdigree Burns (voice)

Kevin McDonaldParrot (voice)

Terri DouglasFish Boy / Drip / Additional Voices (voice)

John KassirP.A. Voice / Additional Voices (voice)

Phyllis DillerAunt Spitzy (voice)

Jason HarrisGargoyle / Flyboy / Skinny Ghost / Coach / Additional Voices (voice)

Daryl DragonMurray (voice)

Toni TennilleBelle (voice)

Danny CookseyAdditional Voices (voice)

Fred TatascioreAdditional Voices (voice)

Mark GravasDirector

Bob MittenthalStory

Joseph OrioloCharacters

Seymour ReitCharacters

Kirk DeMiccoStory

Andrew NichollsScreenplay

Darrell VickersScreenplay

Eric EllenbogenExecutive Producer

Evan BailyProducer

Ralph GuggenheimProducer

Sandra WaltersProducer

Bob MittenthalExecutive Producer