Aku

Aku was a Celerity Demon and mentor to Sarpedon. whom he taught of the upcoming threat of the Avatars and who in turn started stealing guardians to stand at least a small chance against them. He also led two other demons in an attack that killed Kyle Brody's parents in an attempted to get the Avatar Vanquishing Potion, but failed in getting the potion. Sarpedon vanquished Aku in battle in order to prove his strength and readiness to deal with the Avatar threat.

Biographical information

 * Died: 2004, Underworld

Physical description

 * Species: Celerity Demon
 * Gender: Male
 * Hair color: Bald
 * Eye color: Brown
 * Skin color: White

Powers and Abilities

 * Active Powers
 * Smoking: The ability to teleport through smoke.
 * Hyper Speed: The ability to move at super speed.
 * Super Strength: The ability to possess strength beyond humanly possible.
 * Energy Balls: The ability to throw spheres of energy that resemble electrical discharges.
 * Fireballs: The ability to throw spheres of fire.
 * Telepathy: The ability to read the minds of other beings.
 * Summoning: The ability to draw or transprot a being or objects to the user.
 * Other Powers
 * Immortality: The ability to possess an infinite lifespan and an arrested aging process.
 * High Resistance: The ability to be highly resistant to physical and magical harm.