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Batman Wiki
Detective Comics 27

Batman's first appearance in Detective Comics #27

Earth-Two was the original main continuity for DC Comics and its superheroes during the Golden Age of Comic Books (1938-1955). Batman made his first appearance during the period and original stories often took place within the universe. After the introduction of the Second Flash, many Batman stories moved to Earth-One. After The Flash #123's "Flash of Two Earths", the Golden Age stories (along with several Silver-Age ones) were revealed to have taken place on Earth-Two.

Earth-Two was created in a form of retroactive continuity within the Silver Age of Comics. It is the official canon of DC characters from the Golden Age of comics, roughly meaning 1935-1955 (with the exception of characters owned by Fawcett Comics and Charleston Comics respectively). Within it, Batman made his first appearance during 1939, fighting crime until the mid-1950s. Originally a gun-toting vigilante willing to kill, he softened after allowing Dick Grayson to join his side as Robin, the Boy Wonder. Batman would often do battle with small-time criminals, mad scientists and foreign agents, though eventually began encountering "supervillains" like the Joker, Catwoman and Penguin. The Dark Knight eventually retired, marrying Selina Kyle and having a daughter who became the first Huntress.

Among the most notable creators for this universe's Batman include Bob Kane, Bill Finger, Jerry Robinson, Gardner Fox, Dick Sprang and Sheldon Moldoff. However, many of these contributions were attributed to Kane despite varying degrees of involvement (sometimes none).


Golden Age[]


The "Bat-Man" made his first appearance in 1939, originally set in New York City. In addition to this, during his original outings, Bat-Man not only murdered his enemies but would often use a gun to do-so.



Retroactive Continuity[]

Bronze Age[]

Introduced Elements[]


Golden Age[]

  • Batman / Bruce Wayne: First appearing in Detective Comics #27 as "The Bat-Man", Batman (Bruce Wayne) was co-created by Bob Kane and Bill Finger. A wealthy socialite who swore to fight crime after witnessing his parents' brutal murder, he takes on the image of a bat to strike fear into the hearts of the superstitious and cowardly criminals of his city. Batman often lacks superpowers, instead relying on his own physical abilities, mental capabilities and resources to fight crime.
  • Robin/Dick Grayson: The first character to don the "Robin" identity, Richard "Dick" Grayson was created by Finger, Kane and Jerry Robinson. One a member of an acrobatic troupe, he joined Batman's crusade to get justice for the deaths of his parents. Grayson joins Batman's crusade during his pre-teens and continues to operate alongside him through to reaching adulthood. On Earth-Two, Dick continues to operate as Robin up until the Crisis on Infinite Earths. However, on other earths, he adopts the identity of Nightwing, though sometimes succeeds Bruce Wayne as the next Batman.
  • Knight/Percival Sheldrake:
  • Squire/Cyril Sheldrake:
  • Wingman:
  • Batman/Brane Taylor:
  • Martian Manhunter:
Supporting Characters[]
  • Commissioner Gordon: Commissioner James "Jim" Gordon also debuted alongside Batman in Detective Comics #27 and was created by Bill Finger and Bob Kane. In initial depictions, he was a friend of Bruce Wayne who was at odds with Batman and his apparent interference in police operations. However, later changes from Batman #7 changed it so that Gordon was closely allied with Dynamic Duo, even deputizing them as agents of the law. Depending on the period, Gordon is either heavily reliant on Batman to solve unusual crimes, a good cop in a heavily corrupt police department, or the moral compass to Batman. Later stories have made Gordon the father of Barbara Gordon, who served as the second Batgirl and the data broker Oracle.
  • Julie Madison: Julie Madison was Batman's first love-interest and fiancé. Co-created by Gardner Fox, Bill Finger and Sheldon Moldoff, she was introduced in Detective Comics #31. In her initial stories, she was targeted by villains such as the Monk and Clayface. She would later break off her engagement with Bruce after Detective Comics #49 and subsequently leave his life. Although absent throughout much of the Silver and Bronze Ages, Julie has often appeared on several occasions. Her most significant appearances were during Matt Wagner's Batman: Dark Moon Rising series and Scott Snyder's later run on Batman (Vol. 2).
  • Dr. Thomas Wayne:
  • Martha Wayne:
  • C.C. Haly:
  • John Grayson:
  • Mary Grayson:
  • Linda Page:
  • Alfred Pennyworth: Introduced as "Alfred Beagle", he is the loyal butler of Bruce Wayne. Initially introduced in Batman #16, he was co-created by Don Cameron and Bob Kane. The son of the Wayne family's previous butler Jarvis, Alfred became the butler to Bruce Wayne and Dick Grayson following his father's dying wish. He quickly deduced their activities as Batman and Robin, serving as their confidant and helping their investigations. During the 1960s, he was renamed "Alfred Pennyworth" and given a background in British intelligence. Following Crisis on Infinite Earths, Alfred was changed to serve as Thomas and Martha's butler prior to their deaths and Bruce Wayne's legal guardian. Many stories have often depicted Alfred as the "voice of reason" for Batman.
  • Gilda Dent:
  • Vicki Vale:
  • Barbara Eileen Gordon:


  • Doctor Death/Karl Hellfern: First appearing in Detective Comics #39, Doctor Death (Karl Hellfern) was created by Bob Kane and Bill Finger. In his initial depiction, he was a mad scientist who ran a blackmail ring, using poisons to blackmail wealthy citizens. Subsequent depictions have changed him to a chemicals weapon engineer who has worked alongside other villains such as Black Mask and the Riddler.
  • The Monk/Louis DuBois/Niccolai Tepes: A vampire who resided in a Hungary castle, the Monk was created by Gardner Fox and Bob Kane. In his original story, he kidnapped Julie Madison and terrorized Batman, though later died in a confrontation with the Dark Knight. Later stories have retold this encounter differently and established multiple alias for the Monk, including Louis DuBois and Niccolai Tepes.
  • Dala:
  • Prof. Hugo Strange: First appearing in Detective Comics #36, Hugo Strange was created by Bob Kane and Bill Finger. Initially characterized as a mad scientist who utilized various inventions for his schemes, Strange was originally planned to be Batman's arch-nemesis before being apparently killed in Detective Comics #46. The character was later revived in the Bronze Age, where he had developed a fascination in Batman and learned his enemy's identity of Bruce Wayne. Modern incarnations of Strange are often characterized as a mad psychologist obsessed with Batman, even pulling off schemes in order to replace or defeat the Dark Knight.


  • The Joker: A clown-themed criminal often considered Batman's arch-nemesis, the Joker was created by Bob Kane, Bill Finger and Jerry Robinson, and debuted in Batman #1. In his initially depictions, he was a criminal who announced his crimes before pulling them off, challenging Batman to stop him. Later stories changed the Joker to focus more heavily on jokes and humor, though the character returned to his roots during the 1970s. During 1951, the Joker was established to have once been a criminal known as the Red Hood who was disfigured during a fight with Batman during his early days.
  • Catwoman/The Cat/Selina Kyle: A mistress of disguise and cat-themed criminal, the Catwoman (Selina Kyle) was co-created by Kane and Finger for Batman #1. In her initial story, she used the identity of "the Cat" though quickly changed it to after encountering Batman. She often served as both an adversary and love interest for Batman, though would serve as allies when their goal align. Often considered main love-interest, Catwoman has often served as both villain and anti-hero, skirting the line between good and evil on multiple occasions.
  • Clayface/Basil Karlo:
  • The Three Devils:
  • Professor Radium:
  • Blackbeard:
  • The Penguin/Oswald Cobblepot: A dapper-dressed mobster with an interest in birds, the Penguin (Oswald Chesterfield Cobblepot) was created by Bob Kane and Bill Finger in Detective Comics #58. In his initial stories, he portrayed himself as a legitimate member of society whilst also organizing various crimes, often challenging Batman to both stop him and prove his responsibility. From the 1990s, Penguin has often been depicted as one of Gotham's most influential mobsters, running the seemingly legitimate Iceberg Lounge whilst also heavily involved in operations like fencing stolen goods.
  • The Scarecrow/Jonathan Crane: A criminal who specializes in fear and intimidation, the Scarecrow (Jonathan Crane) was created by Bob Kane and Bill Finger for World's Finest Comics #3. Though initially a gangster who wore a scarecrow costume, Scarecrow was later reimagined in the Silver Age to use fear toxin and other chemicals that induced fear or hallucinations. Most incarnations are obsessed with fear, with many of his schemes being pulled off to act as "experiments" on Gotham.
  • Two-Face/Harvey Dent: First appearing in Detective Comics #66, Two-Face (Harvey Dent) was created by Bob Kane. Initially Gotham's heroic District Attorney, Dent became a criminal after being disfigured in a trial and believing his fiancé would reject him for losing his looks. Unlike most villains, Two-Face was reliant on a disfigured double-headed coin to dictate whether he'd act for good or evil. Eventually retired at the end of a trilogy and replaced by other characters, Dent was revived during the Bronze Age and subsequently has become one of Batman's major enemies.
  • Tweedledum & Tweedledee:
  • The Crime Doctor/Bradford Thorne:
  • Cavalier/Mortimor Drake:
  • The Riddler/Edward Nigma:
  • Penny Plunderer:
  • The Mad Hatter/Jervis Tetch:
  • Bat-Hombre:
  • Tiger Shark:
Other Rogues Galleries[]

Retroactive Additions[]






  • In initially planning stages for "Flash of Two Worlds", Earth-Two was the name to be given to the younger continuity inhabited by the Silver Age Flash and the Justice League, whilst Earth-One was to be the Golden Age version and the Justice Society. However, miscommunication led to the older receiving the "Earth-Two" name whilst the younger became Earth-One.