A Shadow

Another character from my story "Hellbound"; Shadow;

A young scientist who worked for an organisation that seeks to combine science and black magic for their own purposes.
As a result of an experiment gone wrong, he is "posessed" by a symbiotic being from the world of shadows, that slowly corrodes his body, but grants him more and more supernatural powers in the process (think Spawn + Alucard & Jackie Estacado, as they were the main inspiration for him)
The 3 red maws are his familiars, guard-dogs if you so will (similar to the familiars of a witch), who have a mind on their own but obey his will for the most part.
He is the strongest when he's as far from light as possible, as the sun saps large parts of his strenght.

I remember a comment from a much older drawing assumed Shadow to be the bad guy of the story. Based on his design, of course, which I found interesting
Let's say he's not the main antagonist, but whether he's a friend or foe of Agares is not quite certain...