A scoundrel from the future intent on making a name for himself in the past, Booster Gold has nevertheless exhibited his share of heroism.
Barbara Gordon redefined what it meant to be a self-made hero when she crafted her own costume and joined Batman's crusade right under her father’s nose.
The mean streets of Gotham City have a number of guardian angels watching over them. And one of the first—the young woman who turned the Dynamic Duo into the Batman family—was Batgirl. Barbara Gordon has always existed between two worlds: her life at home as the only daughter of Police Commissioner James Gordon and her life swinging from gargoyles as an associate of the Dark Knight and a founding member of the Birds of Prey.
Duke Thomas is the daytime protector of Gotham City, and his metahuman light sensory powers make him unlike any of Batman's other crimefighting partners.
While Batman and most of his allies operate at night, crime in Gotham City is quite different in the daytime, and so requires a different kind of crimefighter. Enter Duke Thomas—a.k.a. the Signal, the brightly colored agent of the Bat who hits the streets when the sun is out and Batman is asleep in his cave.