Talia al Ghul (Arabic: تاليا الغول) is the daughter of the late "Ra's al Ghul" and the older paternal half-sister of Nyssa al Ghul. A worldly and cultured elite warrior, Talia is the leader of her own cult of combatants, similar to the League of Assassins.  Oliver Queen,[1] and Adrian Chase.[2] After her father's death, Talia trained Adrian and joined his team in order to get revenge against Oliver, who killed Ra's. Over the years, Talia maintained her youth due to Lazarus Pit. She's 150 yrs old