These are the first things that come to mind at the mention of these NESers. If I didn't mention you, it's because I don't know you well.
alex994- China and Carthage, the Pandas, and Louis XIV. Plus that dude that you had a while back, before I started NESing.
Amon Savag- Crazy Scottish cultist.
andis-1- Anatolia, Finland, and Hedgehogs.
Azale- Portugese scum!
Capulet- AKA Musa?
Cuivinen- The only girl who NESes/NESed.
Cleric- Evil Balkan dude.
das- Wise Russian, Fascist Canadian, Moderator Extraordinaire.
Disenfrancised- Hyperboreans, smoking green midget things, well-read, and a skilled leader.
emu- A floating skull, Deus Vult!, and occasional flaming.
erez87- Israeli, a Black Hole, Nortugal, and Antigot in all of its myriad forms.
Erik Mesoy- Norway, Astral Sojourners, Elgovia, and annoying IC personalities.
Finmaster- Old timer, Genevan, Wilhelmus Tellus, and a dearly missed old school NES.
Gelion- The other Russian Guy, and an Enclave Sergeant.
Hellfury- Vive la Pants! Plus some promising NESes that seem to have fallen flat. But I still believe!
Insane_Panda- French skills, Insane Pandas, Painted Avatars.
Israelite9191- Jewish guy from Chicago, nice, likes to run Israel in NESes.
jalapeno_dude- Hawaiians, Eldranians, and quasars.
Jason the King- That Cloud avatar you had when I first joined NESing, veteran of the forum like das.
Kal'Thzar- Undead Egyptian hordes, amorphous silver blobs.
Kamilian- Poland, StKNES5, and a democratic Russia.
Kentharu- Pixelated Archer, gnomes and cookies.
Lord_Iggy- The Yukon, penguins, and trying to improve my NES war record.
Metaliturtle- REALLY old school, metal turtles.
MjM- Crazy Californian, opportunistic, Iron Crosses with various seasonal themes.
North King- Otters, Michigan, and dead NESes that I really liked.
Silver Steak- A poetic Paladin.
silver2039- Calm, genocidal psycopath.
Stalin006- Good NESer, nice guy, Von Dunkleheit nuking the earth.
Swiss Beserker- Swiss, Finnish, Canadian, Gerber.
Swissempire- A small bird of some sort, and stoned governmental authorities.
Symphony D.- An asian empire from ITNES, and Zim, whoever he is.
Thlayli- French Musketeer, skilled up-and-comer.
tommy_toon- Eire! Plus some staring grey cartoon image and a rifleboy.
tossi- some terrifying purple and green thing from Germany.
Warman17- Sumerian, name suggests warmonger but my experience doesn't.
Whew. Did I miss anyone?
