In the original version of the story and the vast majority of retellings, Batman's secret identity is Bruce Wayne, an American millionaire (later billionaire) playboy, industrialist, and philanthropist. Having witnessed the murder of his parents as a child, he swore revenge on crime, an oath tempered with the greater ideal of justice. Wayne trains himself both physically and intellectually and dons a bat themed costume in order to fight crime. Batman operates in the fictional American Gotham City, assisted by various supporting characters including his crime-fighting partner, Robin, his butler Alfred Pennyworth, the police commissioner Jim Gordon, and occasionally the heroine Batgirl. He fights an assortment of villains such as the Joker, Penguin, the Riddler, Two-Face, Poison Ivy and Catwoman. Unlike most superheroes, he does not possess any superpowers; he makes use of intellect, detective skills, science and technology, wealth, physical prowess, martial arts skills, an indomitable will, fear, and intimidation in his continuous war on crime.
