Grey One

The Grey One is a masked master villain with high-tech hologram capabilities. The first time the gang saw him he was using a 100-foot hologram to scare people away. The second time, he projected werewolf holograms over Shaggy and Scooby to make them look like werewolves. These holograms tracked their movements precisely. The idea was to get them killed by a mob, in revenge for the first time he was thwarted.

Appearances

 * [The Grey One]], Werewolf Are You?