Ras Al Ghul is a Batman villain who first appeared in 1971. He is a master of martial arts and a genius-level intellect, and is known for his use of Lazarus Pits to extend his life. He is an international terrorist and eco-terrorist who seeks to restore balance to the world by any means necessary. His name is derived from the Arabic phrase 'Ras al-Ghul' which translates to 'Head of the Demon'.