Guest Stars Patrick Warburton voices Sheriff Bronson Stone Gary Cole voices Fred Jones Sr. Lewis Black voices Mr. E Udo Kier voices Professor Pericles Kate Higgins voices Janet Nettles Tim Matheson voices Brad Chiles Tia Carrere voices Judy Reeves Kath Soucie voices Nan Blake Vivica A. Fox voices Cassidy Williams Frank Welker voices Barty Blake Linda Cardellini voices Marcie Fleach Mitch Watson voices Ethan Jeff Bennett voices Gary Grey DeLisle Griffin voices Paula Rogers Amy Acker voices Nova (Possessed) Casey Kasem voices Colton Rogers Dee Bradley Baker voices Kriegstaffebot Jennifer Hale voices Nova Scott Menville voices Ricky Owens (Young) Clancy Brown voices Evil Entity Harlan Ellison voices Himself