Hmm, this topic is really interesting to me, because I've given it some thought myself in the past. I definately think that bits and pieces of myself and the people I know have wound up in all my characters. After all, how could they not? My mind can't make anything completely original and out of whole sailcloth. Rather, it is constantly influenced by the events and quandaries of my waking world.
Plus, I don't think I would really want to create anything wholly seperated from my "reality" anyway. I find that when I am reading something for pleasure, whether it be a comic, novel, or even watching a movie, I find that I derive pleasure from situations and faces that are somewhat familiar to me. "I have a friend just like that" I might say, or "Yes, I've been in this kind of situation before".
Not that what entertains me must have things I can immediately identify, (or even identify with), indeed I often choose my preference for something based on just how far into the realm of the bizarre it can go. But then again I often have trouble identifying with the "normal" brands of entertainment available. One solution is to force the characters into broad stereotypes that ANYONE can understand, but I find that that usually leaves the characters too simple for me to care about. But that it helps make me feel... I'm having trouble finding the proper word here. Perhaps it is "comfortable". I wanted my characters to be people that I could understand, and say "I know this person, he is me" about. I do, after all, make "Love Me Not" firstly so that it would entertain me, on a personal level, not necessarily anyone else. I want it to be something that I would want to read.
So yes, perhaps my characters are all facets of my personality given life in cyberspace. I must concede that there are parts of Alex's forlorn longing (yet knowing he can never have what he longs for), Dorian's quiet optimism, Cassandra's guilt-ridden doubt, Danielle's exuberance, and Tobias's self-enforced loneliness all within me.
And also within the people I have known who have passed a part of themselves onto me, or at least what I perceive as parts of themselves. It's impossible for me to fully account for what traits came from where or from who. These characters sprung from my subconcience. I don't know what goes on in there ^^