The 13 Ghosts of Scooby-Doo

To All the Ghouls I've Loved Before (1x1)

Air date: Sep 07, 1985

This is the first episode of the series and we are introduced to all the main characters and how Scooby ends up opening up the Chest of Demons. The ghosts who trick them into opening it up are named Weerd and Bogel and they appear in all episodes causing havoc for the ghostbusting crew.