Joe Dante Director John Goodman Lawrence Woolsey Actor Cathy Moriarty Ruth Corday, Carole Actor Simon Fenton Gene Loomis Actor Omri Katz Stan Actor Lisa Jakub Sandra Actor Kellie Martin Sherry Actor Jesse Lee Soffer Dennis Loomis Actor Lucinda Jenney Anne Loomis Actor James Villemaire Harvey Starkweather Actor Robert Picardo Howard Actor Jesse White Mr. Spector Actor Dick Miller Herb Denning Actor John Sayles Bob Actor David Clennon Jack Actor Luke Halpin Actor Lucy Butler Rhonda Actor Mark McCracken Mant, Bill Actor William Schallert Dr. Grabow, DDS (uncredited) Actor Robert Cornthwaite Dr. Flankon (uncredited) Actor Kevin McCarthy General Ankrum (uncredited) Actor Michael Finnell Producer Charles S. Haas Screenwriter John Hora Cinematographer Marshall Harvey Film Editing Jerry Goldsmith Original Music Steven Legler Production Design Nanci Roberts Art Director Eric Weiler Set Decoration Isis Mussenden Costume Design Gretchen Rennell Casting