Bumpy, an energetic sock-eating monster who lives under a boy's bed, is constantly getting into mischief, with his friends Squishington and Molly Coddle.

Jim Cummingsas Mr. Bumpy (voice)
Gail Matthiusas Molly Coddle (voice)
Rob Paulsenas Squishington (voice)
Scott McAfeeas The Boy
Anndi McAfeeas Little Sis
Jennifer Darlingas Cute Doll #1 (voice)
E. G. Dailyas Germ Girl (voice)
Danny Mannas Phil Silverfish (voice)
Jeff Bennettas Gloog (voice)
David Bleiman Ichioka
Gary Glasberg