Master Warder Z...? Hey, aren't you the same person who argued so strongly about Cole on my Asunder Character thread back at the Social Bioware forum? Well, if so it's lovely to see you out and arguing about again
He's a demon, A spirit deluded and delusional enough, into thinking it was a person, nothing more.
There is nothing Greek about him.
But, onto the matter at hand, yes? I do love a good Cole debate.
Personally, I wouldn't argue that Cole is a hero, nor that he's a villain. He's a tragic character but I don't know that I think he's one who should merit forgiveness or not (I think that would involve a more in-depth knowledge of whether or not all his victims wanted to die or not, but that is neither here nor there, presently).
I would, however, argue that there is a lot that's Greek about him. In comparison, we can look at the Iliad for a bit of juxtaposition. In the account of the Trojan War, Achilles is a very selfish, vain character. He spends the majority of the poem sulking about how the woman he treats as a possession was taken from him and refuses to rejoin the battle's until Agamemnon satisfies his demands. Achilles rejoins the battle only after his friend/possible lover was killed on the field, and once more this isn't for a greater good exactly, rather it is to satisfy his own vengeance against Hector for having killed Patroclus. The entire tale is about his rage and his desires.
Cole's is about self-preservation through killings and a desire to be seen and remain 'real.' (Well, it's deeper than that but I don't think I can show all of my fascination with his character and not make this post longer than I expect it will be...)
Greek philosophy can often be boiled down to ideals and primal emotions - something I think can be seen on a very base level with Cole (who, much like a child, has a bit of an 'Id' quality to him, if you'll allow me to make the Freudian reference).
Now, we could talk about Cole in relation to Platonic or Aristotelian ethics, views of justice and happiness and friendship (ooh, a Aristotelian account of Cole and Rhys' relationship would be fun! Or, or, an account of Cole in comparison to Plato and Aristotle's models of the soul!) if you'd like. However, I think this should be enough for the moment.