Damian Wayne is a fictional character in the DC Universe. Damian is the child of Bruce Wayne and Talia al Ghul and thus the grandson of Batman's villain, Ra's al Ghul. The character was created by Mike W. Barr, and first appeared in Batman: Son of the Demon (1987).
Having spent his gestation in a laboratory, Damian was raised by his mother until ten years of age, 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. Damian is violent and self-important, and was trained by the League of Assassins, learning to kill at a young age. After the events of Batman R.I.P. and Batman: Battle for the Cowl, Damian has taken up the identity of Robin, becoming the fifth and current person to use the Boy Wonder's identity. He worked with Dick Grayson, who replaced Bruce as Batman for a certain time period. Morrison's Batman#666 (2007) depicts a future wherein Damian has become Batman, . In Batman Incorporated #8, Damian is killed by his clone, The Heretic. However, he is soon resurrected, with temporary superpowers.
Batman was not aware of Damian's existence for a considerable time. Genetically perfected and grown in an artificial womb, Damian was intended to be a formidable warrior. He is raised by Talia and the League of Assassins. He becomes a talented martial artist by the time he is a pre-teen, at which time Talia reveals Damian's existence to his father and leaves him in Batman's custody in an effort to disrupt his work.
Precocious, spoiled, and violent, Damian battles Robin (Tim Drake), whom he wants to replace as his father's sidekick, and sucker punches him off the T-Rex of the Batcave. Grounded by Batman, he escapes, dons a variant Robin costume made of Jason Todd's old tunic and assorted League of Assassin gear, and gets into a fight with and decapitates the villainous Spook. Although misguided and malicious, Damian seems to genuinely want to aid his father's war on crime.
Eventually, Batman confronts Talia, but both Talia and Damian are soon caught in an explosion. They survive the explosion, but a badly injured Damian requires transplants of harvested organs, which his mother orders her physicians to carry out. He made a full recovery.
Talia takes Damian to the Australian Outback where he is tutored in the secret history of his grandfather, Ra's al Ghul. Talia is unaware that a former servant of Ra's, named White Ghost, plans to use Damian as a shell for the soul of Ra's to return to Earth. This process would, of course, kill Damian. Talia is able to save her son from his fate at the last minute.