Bruce Thomas Wayne (born February 19, 1972) is the CEO of Wayne Enterprises and the vigilante operating in Gotham City, New Jersey known as the Batman. After witnessing the murder of his parents at the hands of a mugger as a child, Bruce waged a war on crime in Gotham City for over 20 years before the Battle of Metropolis. Over the years, Bruce encountered numerous foes, most notably the Penguin and the Joker. He also mentored Jason Todd to aid him as Robin, though Todd was eventually killed by the Joker and his doctor-turned-partner, Harley Quinn. Batman later apprehended Deadshot and Harley, as well as chased an up and coming Killer Croc out of Gotham during his attempt to form yet another criminal empire in the city. After the death of Robin, Bruce became an increasingly ruthless guardian of Gotham City, as criminals grew wary of his now brutal reputation.
By 2015, a year and a half following the Battle of Metropolis, Bruce had become wary of the intentions of Superman, developing a hatred of the hero further fueled by the Machiavellian manipulations of Lex Luthor. However, Bruce ultimately allied himself with Superman to save Martha Kent, and the two were later joined by Wonder Woman to defeat the Kryptonian behemoth Doomsday, though the battle cost Superman his life. In the following year, Bruce began investigating rumors of scientists from S.T.A.R. Labs being kidnapped by strange creatures in Gotham, theorizing them as the precursor of an impending threat coming to Earth. Meeting with Diana Prince, Bruce relayed his findings but discovered that his suspicions had already been confirmed, as Steppenwolf had already arrived. Bruce then decided to recruit the candidates he and Diana had been observing, realizing that an attack was imminent.
Following the formation of the Justice League, Bruce orchestrated a plan with the help of three metahumans, Arthur Curry, Barry Allen and Victor Stone, to resurrect Superman by utilizing the power of a Mother Box to jump-start the hero's regeneration process and revive him. With the team now fully established, Batman led a successful offensive against Steppenwolf, forcing the latter's invasion into retreat. Afterward, Batman passed the role of leader of the Justice League to Superman, instead focusing on the team's future. Bruce Wayne is Portrayed by actor and filmmaker Ben Affleck in DC Extended Universe.