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.
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)
