Batman is a fictional superhero created by artist Bob Kane and writer Bill Finger, first appearing in Detective Comics #27 in 1939. The character's secret identity is Bruce Wayne, a wealthy American playboy, philanthropist, and industrialist who resides in Gotham City. After witnessing the murder of his parents as a child, he swore revenge against criminals, an oath tempered by a sense of justice. Bruce Wayne trains himself physically and intellectually and crafts a bat-inspired persona to fight crime.
Unlike many superheroes, Batman possesses no superpowers; he relies on his genius intellect, physical prowess, martial arts abilities, detective skills, science and technology, vast wealth, intimidation, and indomitable will. A large ensemble cast of supporting characters includes his sidekick Robin, butler Alfred Pennyworth, and Police Commissioner James Gordon, as well as a rogues' gallery of villains including the Joker, Penguin, Harley Quinn, and Poison Ivy.
Batman quickly became one of DC Comics' most popular characters and has been adapted into numerous media, including film, television, animation, and video games. The character's dark, brooding nature and complex psychology have made him a cultural icon recognized worldwide, representing the archetype of the vigilante hero who operates outside the law to achieve justice.
