Ra’s al Ghul
Ra’s al Ghul, literally translated from the arabic as Head of the Demon, is an international immortal eco-terrorist and an enemy of Batman. Believing that humanity is a blight on the planet, his extremist environmentalism has led him to seek the destruction of modern society. Born centuries ago, he has stayed alive over through usage of restorative Lazarus Pits. These years of experience have made him an incredible tactical expert and physical opponent, allowing him to establish the League of Assassins. His daughter Talia al Ghul has been romantically involved with Batman, leading to a child between the two named Damian al Ghul. Ra’s al Ghul was created by Dennis O’Neil and Neal Adams, first appearing in Batman #232. (1971)