Comic book icon: Batman
Secret identity: Billionaire playboy and Gotham City socialite, Bruce Wayne
Allies aware of true identity: The JLA (Aquaman, The Flash, Green Lantern, Martian Manhunter, Plastic Man, Superman and Wonder Woman), Azrael, Batgirl, Sasha Bordeaux (Bruce Wayne's bodyguard), Catwoman, Henri Ducard (Bruce Wayne's arms dealer), Green Arrow, Carleton LeHah, Man-Bat, Nightwing, Nomoz, Oracle, The Outsiders ( Black Lightning, Geo Force, Halo, Katana, Metamorpho), Alfred Pennyworth (Bruce Wayne's butler), Robin, Sentinel (original Green Lantern, Alan Scott), Leslie Thompkins (friend and mentor to Bruce Wayne), Waverider, Wildcat.
Enemies aware of true identity: Bane, Bird (Bane's minion), David Cain (Batgirl's father), Deathstroke, Hush, Lady Shiva, Nyssa, Ra's Al Ghul, the Riddler, Talia, Trogg (Bane's minion), Ubu (Ra's Al Ghul's servant), Zombie (Bane's minion)
Chances of being exposed in the near future: Highly likely. The villain Bane showed just how dangerous letting the secret slip can be when he ransacked stately Wayne Manor and broke Bruce's spine. With such a large rogue's gallery of villains aware of his public persona, the threat of retaliation towards those close to Bruce Wayne is ever present. Plus, the large group of civilians who know Batman's identity make easy prey to those determined to learn who is underneath the mask and pointy ears. Even worse -- it is hinted at, though not confirmed, that Batman's greatest foe, the Joker, is aware of his civilian identity (but is probably too psychotic to care). Better beef up Wayne Manor security and add another padlock to the Batcave door.