Ra's al Ghul
Ghul is one of the smartest and most physically skilled villains in the Batman universe. He also trained Bane. Ghul is the father of one of Batman's love interests: 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 , Talia appears in. David Warner is his voice actor in Batman: The Animated Series.