Vampires (Monster Museum)

The vampires were holograms created as a distraction by a diamond thief.

Scooby-Doo! (DC Comics)
The thief wanted to create a distraction so he could steal the Hopedfore Double Diamond from the museum. They appeared when Fred Jones and Daphne Blake were searching the bird exhibit of the museum for clues.

Appearances

 * Scooby-Doo! (DC Comics)
 * Monster Museum