Voidmen

The Voidmen are beings made of pure negative energy, who come from the Void.

There are 7 of them in the known Multiverse, Lord Tenebrae the conqueror, Mr. Obscurum the mob boss, Doctor Caligo the mad scientist, Agent Noctem the secret organization director, Master Inanis the martial artist, Mistress Umbra the supreme witch, and Vigilabo the stalka.