Ok, here are some (sorry for those i forget, and for those i just san't picture) :
- Stormcaller : the instructor from Full Metal Jacket
- Rogue Leader : A 1 ft tall Trotsky
- FiringAimlessly : A big grin smiley with a cigar
- Keganator : a guy with a keyboard on his arm and a screen in one eye
- Zundy : a middle-aged man
- Keiichi : the character from his sig
- Phatcat : A snowman
- DarkBls : same as Stormcaller, but with french marseillais accent
- Yurch : a very white-skinned guy (there's not much light in his coding cave)
- Trash123 : a weird-looking alien (old avatar, i think)
- Rostam : Rambo with a machinegun
- And last but not least, Madwoffen : let the image speak :