The Dark Knight Returns / Poster Image. Batman is the superhero vigilante who protects Gotham City from crime and injustice. Batman is the alter ego of Bruce Wayne, a philanthropist, billionaire industrialist, and notorious American playboy. His parents were Thomas and Martha Wayne. The Justice Fighter and The Confronter ENTJ — 358 – 378 – 368 – 137 – 458 – 258 ESTP...