Billy Peltzer
Kate Beringer
Daniel Clamp
Grandpa Fred
Forster
Doctor Catheter
Marla Bloodstone
Murray Futterman
Sheila Futterman
Mr. Katsuji
Mr. Wing
Microwave Marge
Martin
Lewis
Wally
Janitor
Employee Fired for Smoking
Clamp Center Security Guard
Peggy
Messenger
Fire Chief
Fireman
SWAT Team Leader
Newsstand Lady
Hallway Employee
Lady at Elevator
Clamp's Secretary
TV Cameraman
Clamp Center Surveillance Supervisor
Casper
Forster's Assistant
Tour Guide #1
Tour Guide #2
Taxi Driver
Reporter in Lobby
Cop
Theatre Manager
Movie Theater Mom
Movie Theatre Kid
Projectionist
Leonard Maltin
Hulk Hogan
Dick Butkus
Bubba Smith
TV Reporter
TV Reporter at Wing's
TV Anchor in Bar
Forster's Technician
Yogurt Jerk
Yogurt Customer
Gizmo (voice)
Mohawk (voice)
Brain Gremlin (voice)
Gremlins (voice)
Announcer (voice)
Bugs Bunny / Daffy Duck / Porky Pig (voice)
Grandpa Fred Director (uncredited)