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.
| Production | Mary Hidalgo | Casting |
| Directing | Mark Gravas | Director |
| Writing | Kirk DeMicco | Story |
| Writing | Andrew Nicholls | Screenplay |
| Writing | Darrell Vickers | Screenplay |
| Production | Ralph Guggenheim | Producer |
| Production | Eric Ellenbogen | Executive Producer |
| Production | Evan Baily | Producer |
| Production | Nickole Kerner-Bobley | Associate Producer |
| Production | Milind D. Shinde | Line Producer |
| Production | Sandra Walters | Producer |
| Sound | Magnus Fiennes | Music |
| Editing | Daryl Davies | Editor |
| Sound | Lou Esposito | Sound |
| Art | Tim Pyman | Art Direction |
| Production | Bob Mittenthal | Executive Producer |
| Writing | Bob Mittenthal | Story |
