Inch by inch, the beginning draws nearer. Only 9 names left.
I can recommend some:
There's the Penguin (Burgess Meredith is the best. Also, I think he should have been in Rocky. "Yer gonna eat lightning and crap thunder. WAH WAH WAH WAH WAH!)
Two Face (who makes decisions with the toss of a coin)
Johnny Caligula (Yes, this is a real character. Best villain name ever. I don't even have to explain him. The name does all the work.)
Ace the Bathound
Clock King (Guy likes clocks)
Aunt Harriet
Chief O'Hara