Ra's al Ghul also known as The Demon's Head is The Founder and Leader of The League of Assassins based in Nanda Parbat. He's also The Father of Talia al Ghul and Nyssa al Ghul who serves under him as a high ranking Member of The League of Assassins. He has also personally trained his both his Daughter Talia al Ghul and Nyssa al Ghul and also helped personally train Sara Lance, Malcolm Merlyn and Al-Owal.