So, here's my dilemma. Character A is a consistent member of my webcomic's cast. He is established early on, and is one of the more popular characters among my readers.
Character B—to be introduced later—can do everything that A can, but can actually do some of it better. B will be introduced on the villain side, but slowly work his way toward anti-hero status as he reveals a grander agenda. Taken at face value, Character B might be a Mary Sue—they're absolutely superior to a pre-established cast member in almost every way, shape and form, maybe only spared by the fact that they are, in fact, a villain and would HAVE to be better in SOME way to create conflict. Still, that's debatable.
Here's the thing: what if character B is actually character A from the future? Does this make character B's absolute superiority to A excusable? What is A is already bordering on Mary Sue status? What if my entire cast is? It initially hadn't bothered me, but after bouncing the idea off my roommate, he pointed out that character B sounds awfully Sue-ish—and now I'm scared half to death that my entire comic is one giant Suedom. Nobody's mentioned it hence far, though, so for now—for this particular moment—I'm just worried about B.
Hmm, I seem to have rambled.
I planned on removing B from the plot once he'd served his purpose, so as not to have him running around at the same time as A post-reveal... but now I'm afraid it reeks of him being "too good for this earth" and all that. I keep getting into this infinite loop of worrying myself about it.
I don't even know if I make sense anymore.