All 52 frighteningly funny episodes!

Meet Ickis, Oblina and Krumm, three young monsters at the “scariest” school you’ve ever seen! When they’re not studying the best methods of frightening humans from their headmaster, The Gromble, the trio is facing off against Simon, the most determined monster-hunter in town! Can they keep the secrets of the monsters safe while on their crazy adventures?

One of Nickelodeon’s flagship programs, the series boasts an impressive voice cast including Charlie Adler (Rocko’s Modern Life), Christine Cavanaugh (Rugrats), Gregg Berger (The Transformers), Tim Curry (Clue) and James Belushi (Hoodwinked!) as Simon the Monster Hunter.