A string of power outages is blamed on a group of people living underground, but the XGBs discover that a quartet of energy-based ghosts are the true culprits.
- Egon Spengler - Maurice LaMarche
- Janine Melnitz - Pat Musick
- Kylie Griffin - Tara Charendoff
- Eduardo Rivera - Rino Romano
- Roland Jackson - Alfonso Ribeiro
- Garrett Miller - Jason Marsden
- Slimer - Billy West