Joe Dante Director, Film Editing Bradford Dillman Paul Grogan Actor Heather Menzies-Urich Maggie McKeown Actor Kevin McCarthy Dr. Robert Hoak Actor Keenan Wynn Jack Actor Dick Miller Buck Gardner Actor Barbara Steele Dr. Mengers Actor Belinda Balaski Betsy Actor Melody Thomas Scott Laura Dickinson Actor Bruce Gordon Colonel Waxman Actor Barry Brown Trooper Actor Paul Bartel Dumont Actor Shannon Collins Suzie Grogan Actor Shawn Nelson Whitney Actor Richard Deacon Earl Lyon Actor Janie Squire Barbara Randolph Actor Roger Richman David Actor Bill Smillie Jailer Actor Guich Koock TV Pitchman Actor John Sayles Writer Roger Corman Executive Producer Jeff Schechtman Executive Producer Jon Davison Producer Pino Donaggio Original Music Jamie Anderson Cinematographer Mark Goldblatt Film Editing Susan Arnold Casting Bill Mellin Art Director Kerry Mellin Art Director Jeff Ayers Set Decoration