© 2026 The Couch Critic
Available options inUS
We couldn't find any streaming, rent, or buy options for this content in US
When Casper's been being friendly lately even when playing with a boy named Jimmy, Kibosh: The King of the Underworld has Casper enrolled into a Scare School headed by the two-headed headmaster Alder and Dash. He befriends Ra, a mummy with unraveling issues and Mantha, a zombie girl who keeps falling apart. When Casper discovers the two-headed headmaster's plot to use a petrification potion to turn Kibosh into stone and take over the Underworld and Deedstown, he and his new friends must stop him.
26 Cast Members
Devon Werkheiser
Casper / Casper's Shadow (voice)
Brett DelBuono
Jimmy (voice)
Jim Belushi
Alder (voice)
Bob Saget
Dash (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)
Candi Milo
Mickey (voice)
Nika Futterman
Monaco (voice)
Kendre Berry
Ra (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)
