This has been bugging me. It's been said earlier that these bios are not meant to be a Wikipedia mirror, and yet a majority of the source links are from Wikipedia. While I'm quite sure that Wikipedia is an excellent source of information (and that the info portrayed in this thread isn't a mirror), I would, personaly, like to see more "outside" links (even if it's a fansite for the game the character is in, and not a site for the character themselves).
Since I don't have any helpful information for most of what's been said, I'd like to post some very comprehensive links for the Mega Man (which can be used for Mega Man X, as well, I believe) bio.
http://www.mmhp.net/ This is a site I accidently stumbled onto, while looking for a different MM site. As such, I haven't really looked at it to deeply, but it looks good.
http://www.megaman-network.com/ This site is dripping with MM info of all kinds. Seriously, I think even Smoke could find helpful stuff here (though he very well may have written half the site, for all I know).
http://mmco.megaman-network.com/charbios/ Bios for all of the MM Classic characters (even those who were very un-important).
http://mmco.megaman-network.com/analyses/ In depth analyses of the MM Classic series as a whole. Oddly enough, there's actaully storyline to the original games, and not just "shoot anything that moves." (though that is what happens, of course, the analyses is cool because it tells what goes on in the background, how things develop, and even illustrates how Dr. Wily changes, and improves, his methods of attack and disguise)
Though I haven't written a bio, I'd be very disapointed if the megaman-network links weren't included, as they certainly contain any and all info MM related.
Sorry I can't help more, but maybe I'll rewrite/add to the MM bio later. Anyway, take a look at those links. I think they're quite amazing.
Oh, last thing. MM has appeared on every system made by Nintendo. MM 1-6 for the NES, the GB games (listed already), the SNES games (listed already) and the MOST IMPORTANT ones, the Megaman Legends series! Megamam Legends 1 & 2 were on the PSX. Megaman Legends 1 was ported to the N64 as Megaman 64. Also, MM made it to the Gamecube in the Anniversiary Col. (though I don't know if that counts). As for Mega Man X, it should be noted that MMX 1-3 were on the SNES, and MMX 3-6 were on the PSX (yes, Mega Man X 3 was on both the PSX and the SNES. I have them both, if you want proof), with MMX 7 & 8 on the PS2. Also, the MMX Col. is coming out soon, and will be out on the PS2 as well as the Gamecube. Another MMX game on the Gamecube was MMX: Command Mission, which was the first RPG starring MM (though the MM Legends series had a lot of RPG elements, they're not really RPGs).
And, don't forget the PC versions of MM games. There were a few MMX games that made it to the PC, and Megaman Legends 1 made it to the PC as well (I think there were others, but I'm not sure). Yes, I do realize that every game starring Megaman can't be listed in the bio (he might actaully beat out Mario...), but if the comment "mega man has had at least one game on all but one of the nintendo consoles." is going to be made, I'd like to to be truthful (which, that comment isn't true, since there has been a Mega Man game on every single one of Nintendo's consoles (unless you count Mega Man Legends as a separate character/bio)).
Anyway, there's my contribution to this project (for now). Hopefully, it can be of use for the final product.
[EDIT] In case you're wondering, the Megaman-Network site also lits all of its sources. The link for that info is http://mmco.megaman-network.com/resources/ Again, hopefully this can be useful to you. Mouser X out.
[EDIT2] Mascot 54 (Dr. Wily) has a full name of "Dr. Albert W. Wily" Please see Megman-Network for more details (that's where I found his name).