Three young monsters — Ickis, Oblina and Krumm — attends an institute for monsters under a city dump and learn to frighten humans.
Ickis (voice)
Oblina (voice)
Krumm / Snorch (voice)
The Gromble (voice)
Simon the Monster Hunter (voice)
Blorp 2+4 / Woman (voice)
Girl (voice)
Borl / Chauffer (voice)
Deitrich Dunlap (voice)
Zimbo (voice)
Ocka (voice)
The Library Monster (voice)
Dr. Buzz Kutt (voice)
Slickis (voice)
Harryette (voice)
Carl (voice)