Demon Hero

Anti-Hero/Grey protagonist

The Soulless Man
The Demon
Death itself

(all nicknamed by public or enemies)

Male

Around mid-30's but will no longer age.

Black

Short, unkempt

All black.

Protecting humanity.

While the drive to protect humanity remains despite losing his human emotions, the lack of them can lead to other problems, such as social interaction with regular people, or the ability to empathize on a personal scale.

"Machines" of a kind. Does not trust the Cyborg nor Aaron when the team first assembles.

Apathetic, unemotional, uncaring and yet, still heroic.

Death/Darkness Manipulation

Killing through physical contact/contact with dark energy
Darkness Constructs
Expel dark energy from hands
Materialize self into dark energy