In A World... where the world's greatest heroes (and their roster of closely affiliated allies) has vanished, an old hero re-emerges to replace them, with a new mission and the identity of a fallen hero. Villains of the DCU, beware... Adrian Chase: The Spectre!
Booster Gold: The World's Greatest Hero that the World will never know about.
Demon, Thunderbolt
Someone from the JSA. Green Lantern if he hasn't been removed.