Oh wow. Honestly, I don't even remember at this point. The earliest one I can remember is "Gigi" (now named Crystal) who is actually being featured in my Nuzlocke comics XD Though her earlier rendition was pretty much a Mary Sue. I remember her biggest thing was that she could sing really well and the other day I was looking at a Hilary Duff album and realized who I based her off of I was a HUGE Hilary Duff fan as a kid. She's been the character I've kept around the longest and because of that I've spent some time nerf-ing her Mary Sue-ness to the point where I hope I would consider that no longer a trait of her's XD

Other characters I remember having (and I'm not sure if they predate Gigi/Crystal or not) are Gigi (I had two OCs named Gigi for the longest time OTL) a small dragon who's initial appearance was pretty much a mini Haku (dragon form, from Spirited Away) who's now pretty different, but still named Gigi (I really should rename her too, it's weird having characters who share my nickname DX). Actually, trying to use my memory, I think Gigi/Crystal and Gigi might have been the same character (oh, did I mention Gigi/Crystal use to be a shape-shifter (and not just from human to dragon, human/dragon to anything /o/)? Forgot about that), but then I split them into two characters and removed both of their shape-shifting abilities. I also had a guy called Osan who was an anthromorphic axolotl basically. He was a villain as I recall but I don't actually remember anything else about him. XD