Who's This? That obscure supervillain on page 7 of Who's Who vol.XIII.
How you could have heard of her: Slim chance. Crisis fans who blinked might have missed her fighting Negative Woman in a single silent panel from Crisis on Infinite Earths #9.
Example story: World's Finest Comics #266 by Cary Burket, Rich Buckler and Bob Smith; edited by Wonder Woman writer and Stacy creator Jack C. Harris
And to think neither Etta Candy nor Steve Trevor scored a Who's Who entry...
Who else? Half-pagers tend towards obscurity, but I remember both Kulaak and Kung from All-Star Squadron, so I skipped ahead. They would definitely feature in a second wave of articles though. Up next, true blue Golden Age material.