Ra's al Ghul
Ra's al Ghul is a fictional Batman character who is a supervillain who was the one who trains Bruce Wayne the mental and physical part of becoming Batman. He is the leader of the League of Shadows, which is an organization that makes people doing destructive things in order to make the Earth safe and restores civilization.
Ghul is one of the smartest and physical villains that Batman has. He also trained Bane. Ghul is the father of Batman's love interest Talia al Ghul. He was played by Liam Neeson and by Ken Watanabe (decoy) in Batman Begins. Neeson later had a small role as Ra's in The Dark Knight Rises in which his daughter, Talia appears in. David Warner makes his voice in Batman: The Animated Series.