Robin (Damian Wayne)

Damian Wayne, also known as the fourth and current Robin is the son of Bruce Wayne and Talia al Ghul and thus the grandson of Batman's villain, Ra's al Ghul. He was trained since birth by the League but was later forced to flee with his mother to Gotham City, at which point she left him in the care of his father, who had not been aware of his son's existence until that point in time. After meeting his father, he became the fourth and current person to use the Boy Wonder's identity and changed his ways from vengeance to justice, eventually joining the Teen Titans.

Trivia

 * Robin (Damian Wayne) first appeared in Batman: Son of the Demon (1987).