Creation Story
Two-Face is Bill Finger’s character. Finger, writing under a contract that gave sole public credit to Bob Kane, built the Harvey Dent concept around the Jekyll-and-Hyde duality that he had been interested in developing as a Batman antagonist for some time. Finger had written the Joker’s first appearance (Batman #1, 1940) and had established the Batman rogues-gallery structure over the preceding two years; Two-Face was his next major contribution.
Detective Comics #66 (August 1942) introduces Harvey Kent (later renamed Harvey Dent to avoid confusion with Clark Kent) as Gotham’s district attorney. Mobster Boss Moroni throws acid in his face during a trial. The disfigurement splits Harvey’s psyche into two opposing personalities, one law-abiding and one criminal, and the coin-flip becomes his decision-making mechanism. Kane’s pencils, with uncredited contribution from Jerry Robinson, established the half-and-half facial design that has persisted essentially unchanged for eighty years.
The character’s essential elements were all in place from the debut: the coin, the dual costume (half-suit, half-ragged-clothing), the scarred side of the face, the district-attorney backstory, the Gotham-specific tragic-hero framing. Finger’s writing positioned Two-Face as the most sympathetic of Batman’s major rogues; unlike the Joker, Harvey Dent was a good man destroyed by circumstance, and Batman’s recurring interaction with the character is tragic rather than adversarial.
The Long Halloween era
The modern Two-Face is defined by Jeph Loeb and Tim Sale’s Batman: The Long Halloween (1996 to 1997). The 13-issue limited series tracks Harvey Dent as Gotham’s district attorney across a year of serial killings, his collaboration with Batman and James Gordon on the investigation, and the acid attack that transforms him into Two-Face. The arc concludes with Harvey committing murder in cold blood, completing his fall.
Long Halloween is the single most-referenced modern Batman story in film adaptations. Christopher Nolan’s The Dark Knight (2008) adapts its structure and character arcs directly; Aaron Eckhart’s Harvey Dent performance draws explicitly from the Loeb and Sale version. Jeph Loeb returned to Two-Face with the sequel Batman: Dark Victory (1999) and the one-shot Batman: When in Rome (2005), completing a trilogy.
Collector context
Detective Comics #66 is the primary Two-Face key and one of the most important Golden Age Batman books after Batman #1 and Detective Comics #27. High-grade copies have crossed $250,000 at auction. The book’s collector weight increased meaningfully with the 2008 film and has held through the DC animated properties and modern Batman book events.
Secondary keys: Batman: The Long Halloween #1 (1996) is the modern Two-Face key and the most-recommended starting point for new readers. Available in multiple collected editions.