Scooby-Doo! Mystery Incorporated Season 1 Episode 23 - A Haunting in Crystal Cove

Mayor Jones is under attack by a poltergeist in his own home, and the only ones who can help him are Scooby and the gang. After hiring a voodoo priestess to help rid the mayor's home of evil spirits, the gang discovers that there is more to this haunting than they first believed. This poltergeist, it turns out, is after revenge.