Setsuna F. Seiei

In the Soulverse, Setsuna F. Seiei was a young man who was afflicted by an evil split personality called Allelujah.

History
One day, Setsuna appeared in a desert town on Rhadan and cried out for help. After nobody responded, he walked over to a shop selling rifles and possessed the owner's body, forcing him to give him one. Kat Vance and Jimmy Pop noticed Setsuna and approached him, the former asking if he was new to the town too. Setsuna was overwhelmed with lust upon seeing the catgirl and fell unconscious.

Moments later, Setsuna awakened with red eyes, and began grabbing Kat in all variety of unacceptable places. Kat threw him off, dazing him and causing a change in his personality. His eyes changed back to blue and he began pleading for his life, claiming that his alternate personality, Allelujah, is the one who groped Kat, since he takes over when Setsuna is asleep. Jimmy and Kat just gave him pitiful looks and left.

Just when Jimmy and Kat thought they were safe on the other side of town, Setsuna returned piloting a fighter jet. He fired a missile through the door of the shop they were in and rained hellfire rockets on the village, killing many. Jimmy jumped on top of the jet and took it down with his bare hands, smashing the cockpit and dragging Setsuna out. He then broke Setsuna's leg and aimed a revolver at his head, demanding a reason as to why he attacked them. Setsuna was too busy struggling against Allelujah for control of his body to respond, but for the moment, Allelujah won, sarcastically goading Jimmy to "try him". Jimmy responded by scathing his body in hellfire, mortally wounding him. As Jimmy and Kat left for their ship, Setsuna wondered aloud why Allelujah did this, and died.

Abilities & Powers
Setsuna had the ability to possess other people's bodies, controlling their actions, but he could only control someone up to a minute before he must return to his own body. When Allelujah was in control of his body, Setsuna could radiate blasts of electricity powerful enough to turn ordinary people into dust.
 * Possession
 * Electricity

Trivia

 * Setsuna F. Seiei is the protagonist of the anime series Mobile Suit Gundam 00.
 * His split personality Allelujah is a reference to the character Allelujah Haptism, who has a similarly-named split personality of his own.