The Webmaster
The Taxman.
Slan,
D.
The Troll.
The Fippler
The Tweaker
The Jerry Freeman tweaked Joker.
Chiffwoman.
Rcrd*rman.
Man, I sit down to compose "Rcrd*rwoman and what do I find has been posted in the meantime?
LOL!
laughs maniacally
Muuuahahahahaha. You’ll just have to try harder, Rcrd*rwoman. But we needn’t be nemeses, need we? rubs hands in a calculating fashion Let’s think of it as a healthy “rivalry”, shall we? All the more opportunity to wreak havoc and wickedness upon all of Gotham City. 
Celtic Knotsy. Will strangle you as you sit mesmerized by the Riverdance soundtrack.
“The Bodhrán”, along with his accomplices “Spoons” and “Bones”.
WhOA-Face
controls a network of virtual arachnids which reproduce like computer viruses and distribute themselves into the homes of Gotham City by internet.
rejected by all “polite” chatrooms, he now lurks on forums where he places strategically posts, pithy but obnoxious, which goad otherwise congenial chat-buddies into eating each other alive.
The Molestor.
The Turd Burgler.
Fat Woman.
The Smoker.
The Piddler.
“Danny Boy” - AKA “Derry Air” AKA “Londonderry Air”
Whenever he turns up, musicians flinch and friends break out in bitter arguments over which is his TRUE name.
That enemy of truth, justice, and concert pitch. That bane of fipple repectability. That recorder with the sound of a telephone…
The Flutophone
SCREEEEEEEEEECH!
The Frank Gorshin
Wasn’t that Gorshin picture from an episode of Star Trek ?
http://www.geocities.com/Hollywood/Hills/7537/Riddler.htm
Riddler… or as they say in New York ‘Riddla’
The dastardly duo Quibbler and sidekick Waffler. One argues small points incessantly and the other flipflops…Not that there’s anything wrong with that… 