Lisa the Vampire Croaker/Appearances

Characters

 * Lisa Simpson
 * Bart Simpson
 * Groundskeeper Willie
 * Dr. Nick Riviera
 * Hans Moleman
 * Chief Wiggum
 * Homer Simpson

Locations

 * Springfield Elementary School
 * 742 Evergreen Terrace
 * Dr. Nick Riviera's Blood Bank

Vehicles

 * Blood Mobile
 * Dr. Nick Riviera's Blood Bank Shuttle

Media

 * Harry Potter and the Enormous Royalties
 * Springfield Shopper
 * School Textbook