Dick Miller
as Murray Futterman
Robert Picardo
as Forster
Robert Prosky
as Grandpa Fred
Phoebe Cates
as Kate Beringer
Zach Galligan
as Billy Peltzer
John Glover
as Daniel Clamp
Kathleen Freeman
as Microwave Marge
Gedde Watanabe
as Mr. Katsuji
Haviland Morris
as Marla Bloodstone
Jackie Joseph
as Sheila Futterman
Keye Luke
as Mr. Wing