Batman

Batman first appeared in Detective Comics #27, cover-dated May 1939, published by National Allied Publications. Writer Bill Finger and artist Bob Kane created the character, although later historical accounts emphasize Finger's contributions, including the darker costume and detective-oriented identity. The debut story introduced Bruce Wayne, a Gotham City resident who secretly operated as a crime fighter under the name Batman. Unlike Superman, Batman had no superhuman powers; his effectiveness depended on investigation, physical training, disguises, equipment, and psychological intimidation. His origin was established afterward as a child, Bruce witnessed his parents, Thomas and Martha Wayne murdered in Crime Alley.

Early Batman stories presented a pulp-influenced detective whose cases involved gangsters, secret societies, codes, and elaborate crimes. The character's supporting cast expanded rapidly. Commissioner James Gordon became a police ally, while the Batmobile and Batcave became recurring elements. Dick Grayson debuted in Detective Comics #38, cover-dated April 1940, as Robin, the first major superhero sidekick. His presence shifted Batman's tone toward adventure and established a partnership that influenced later comics and adaptations. In 1940, Batman also received a self-titled comic, and the Joker and Catwoman emerged as enduring enemies and occasional uneasy allies. Their contrasting motives helped define Gotham's criminal mythology.

During the 1960s, Batman reached a mass television audience through the ABC series Batman, which premiered in 1966. Adam West played Bruce Wayne, and Burt Ward played Robin; the program used bright colors, comic-book captions, and camp humor rather than the grim atmosphere associated with many modern interpretations. Its popularity nevertheless strengthened Batman's public profile. The 1989 film Batman, directed by Tim Burton and starring Michael Keaton, portrayed a more gothic Gotham and made the Joker, played by Jack Nicholson, central to its story. It helped make superhero films major Hollywood releases in that period and influenced subsequent comic-book adaptations.

Batman's modern comic history was reshaped by Frank Miller's 1986 miniseries The Dark Knight Returns, which imagined an aging Bruce Wayne returning to vigilantism in a dystopian future. Alan Moore and Brian Bolland's 1988 graphic novel Batman: The Killing Joke examined the relationship between Batman and the Joker, while Grant Morrison's long run, beginning in 2006, incorporated multiple eras of Batman continuity. Christopher Nolan's film trilogy—Batman Begins (2005), The Dark Knight (2008), and The Dark Knight Rises (2012)—starred Christian Bale and treated Bruce as a psychologically driven crime fighter. Heath Ledger won an Academy Award posthumously for Joker.