Prime Evil is the self appointed leader of all the ghosts. This electrical skull lives in the Fifth Dimension and from there he leads the army of ghosts. Prime Evil Skull is describedas one of the greatest wizards who ever lived. His powers show this power; in most episodes he’s completely immune to the Ghost Dematerializer. He’s even shown to have the power to dematerialize his henchmen who’ve been affected by the weapon. In the original concept, Prime Evil Skull was designed as a more traditional Grim Reaper-type figure, or at least strongly inspired by Mumm-Ra from Thundercats. Prime Evil Skull looked like a cyborg version of Skeletor in robes.