Black Canary
At one time a Seattle-based superhero, now she works with/for Barbara Gordon. She has a killer scream.
Indigo
The niave cyborg/robot from the future who turned out to be a Brainiac (Brainiac 8 I believe). Strange that she is aqua-colored rather than indigo-colored, huh?
White Queen
Former supervillain Emma Frost, now co-leader of superhero X-Men. Still thinks she's better than everybody else, though.
Black Cat
Has basically the same relationship with Spider-Man that Catwoman does with Batman, except that Black Cat became a cat burglar in the first place in order to get close to Spider-Man.