Nadine Van der Velde previously appeared in Critters - Gli extraroditori (1986) which is also about vicious little monsters.
Director Tina Hirsch edited the very similar Gremlins (1984). Robert Picardo would go on to appear in Gremlins 2 - La nuova stirpe (1990) and has also been in numerous other films by Gremlins director Joe Dante. In two of these, Salto nel buio (1987) and L'erba del vicino (1989), Wendy Schaal also appeared.
Arnold's voice sounds like Gizmo the Mogwai (from Gremlins (1984)), while other Munchies sound like Cheech Marin, Doctor Claw (from L'ispettore Gadget (1983)), Pepé Le Pew (from Odor-Able Kitty (1945) and other Looney Tunes & Merrie Melodies cartoons), and Dumb Donald (from Albertone (1972)).
The front license plate of the AMC Gremlin automobile driven by the Munchies says "OHGIZMO." A nod to Gremlins (1984). That film was directed by Joe Dante, who used to work for this film's producer, Roger Corman.