Is an avatar not a character?
Both my sonas have extensive backstories, but that's just cause I like world building.
That's a strange world there, KDI suppose since he's been used in stories and such with his own backstory...then yes?
Doesn't have a huge world or history. Not like he's from an alternate dimension where cookies taste like burnt carrots and wombats have electric tongues X3
But still, I'd say he's a character :3