Ghosts

Though a common misinterpretation, Life is not a qualification for Evil. Many Super Villains are either Ghosts out for revenge, or Ghost Kings who want to raze their killers and take back their Kingdoms. All Ghosts, with the exception of Furies are bound to earth by an Object of Power. Ghost Kings are bound by their Crown or Throne, Vengful Spirits are bound by the Person, or persons who they want to kill and Poltergeists are bound by their houses.

Ghost Kings
Ghost Kings are Ancient Kings, Queens, Emperors or other Leaders who want to conquer the world, even after death. They are bound to Earth by their Crown or Throne, and often command their Ghost Army, or can use their hidden Treasures to hire Mercanaries or act as Advisors to Military Generals, World Leaders or even other Super Villains. They have large stores of Gold, Jems or other treasures from when they were in power. The only problems with them are they struggle with modern languages, weapons and vehicles.

Vengeful Spirits
Vengeful Spirits are Ghosts that are bound to Earth only to extract revenge on those who wronged them. They are strongly bound by their target, and upon getting revenge they will fade out of existance. They can posess Vehicles, Weapons and even people to get their revenge. They are impatient and aggressive, but a great Evil Genius can use them in their plans and schemes to elminate enemies.

Poltergeists
Poltergeists are chaotic spirits who are anchored to the Earth by a building of importance to them, like an Old Wooden House, a Castle or a Prison. They are usualy evil, but can be conquered by Super Villains who want to use them to protect their base, if you want a Poltergeist as additional security to your lair.

Furies
Furies are energetic War Spirits who travel the world without anchors, attacking whoever they see fit. Most are war-mongerers but some have a skewed sense of Justice that helps them decide their victims. They can bend Lighning, Fire and Wind to their will, and the stronger ones can release EMP's with their energy. Can join forces with Super Villains to attack enemes, and can only be destroyed with heavy weapons.