Green Lantern in the context of "Sojourner Mullein"

A superhero or superheroine, is a character who typically possesses superpowers or abilities beyond those of ordinary people, is frequently costumed concealing their identity, and fits the role of the hero, typically using their powers to help the world become a better place, or dedicating themselves to protecting the public and fighting crime. Superhero fiction is the genre of fiction that is centered on such characters, especially, since the 1930s, in American comic books (and later in Hollywood films, film serials, television and video games), as well as in Japanese media (including kamishibai, tokusatsu, manga, anime and video games).

Superheroes come from a wide array of different backgrounds and origins. Most superheroes (for example, Superman and Spider-Man) usually possess non-human or superhuman biology, while others (such as Batman and Iron Man) derive their status from advanced technology they create and use, but some of them may use or possess objects that have superhuman, mystical, or alien powers (such as Green Lantern and He-Man), or study and practice magic to achieve their abilities (such as Doctor Fate and Doctor Strange). The Dictionary.com definition of "superhero" is "a figure, especially in a comic strip or cartoon, endowed with superhuman powers and usually portrayed as fighting evil or crime," and the Merriam-Webster dictionary gives the definition as "a fictional hero having extraordinary or superhuman powers; also: an exceptionally skillful or successful person." Terms such as masked crime fighters, costumed adventurers or masked vigilantes are sometimes used to refer to characters such as the Spirit, who may not be explicitly referred to as superheroes but nevertheless share similar traits.

Milton "Bill" Finger (February 8, 1914 – c. January 18, 1974) was an American comic book writer who significantly contributed to the DC Comics character Batman with his creator, Bob Kane. Despite making major (sometimes, signature) contributions as an innovative writer, visionary mythos/world builder and illustration architect, Finger (like other creators of his era) was often relegated to ghostwriter status on many comics—including those featuring Batman, and the original Green Lantern, Alan Scott.

While Kane privately admitted in a 1980s audio interview with his autobiographer that Finger was responsible for "50–75% of all the creativity in Batman," he publicly denied Finger had been anything more than a subcontractor executing Kane's ideas for decades. As a result, Finger died in obscurity and poverty while the Batman brand, and Kane, amassed international fame and wealth. In the 2000s, Finger biographer Marc Tyler Nobleman's research uncovered previously unknown heirs. At the urging of Nobleman, the online comics fan community, and others, Finger's granddaughter revived the fight to restore his lost legacy, which continued for years. In 2015, DC Comics's parent company conditionally agreed to recognize Finger's intellectual property claim as co-creator of the Batman characters and mythos, officially adding his name, going forward, to the "created by" credit line Kane had been contractually guaranteed in 1939.

The DC Universe (DCU) is a fictional shared universe in which most stories in American comic book titles published by DC Comics take place. In context, the term "DC Universe" usually refers to the main DC continuity. It contains various superheroes such as Superman, Batman, Wonder Woman, Green Lantern, the Flash, and Aquaman; as well as teams such as the Justice League, the Suicide Squad, and the Teen Titans. It also contains well-known supervillains, including the Joker, Lex Luthor, Brainiac, Deathstroke, the Reverse-Flash, and Darkseid.

A superhero or superheroine, is a character who typically possesses superpowers or abilities beyond those of ordinary people; is frequently costumed, concealing their identity; and fits the role of the hero, typically using their powers to help the world become a better place, or dedicating themselves to protecting the public and fighting crime. Superhero fiction is the genre of fiction that is centered on such characters, especially, since the 1930s, in American comic books (and later in Hollywood films, film serials, television and video games), as well as in Japanese media (including kamishibai, tokusatsu, manga, anime and video games).

Superheroes come from a wide array of different backgrounds and origins. Most superheroes (for example, Superman and Spider-Man) usually possess non-human or superhuman biology, while others (such as Batman and Iron Man) derive their status from advanced technology they create and use; others may use or possess objects that have superhuman, mystical, or alien powers (such as Green Lantern and He-Man), or study and practice magic to achieve their abilities (such as Doctor Fate and Doctor Strange). The Dictionary.com definition of "superhero" is "a figure, especially in a comic strip or cartoon, endowed with superhuman powers and usually portrayed as fighting evil or crime," and the Merriam-Webster dictionary gives the definition as "a fictional hero having extraordinary or superhuman powers; also: an exceptionally skillful or successful person." Terms such as masked crime fighters, costumed adventurers or masked vigilantes are sometimes used to refer to characters such as the Spirit, who may not be explicitly referred to as superheroes but nevertheless share similar traits.

Alan Ladd Wellington Scott is a superhero appearing in American comic books published by DC Comics, and the first character to bear the name Green Lantern. He fights evil with the aid of his mystical ring, which grants him a variety of powers. He was created by Martin Nodell and Bill Finger, first appearing in the comic book All-American Comics #16, published on July 10, 1940.

Alan Scott was created after Nodell became inspired by the characters from Greek, Norse, and Middle Eastern myths and tales, including Aladdin from One Thousand and One Nights, and sought to create a popular entertainment character who fought evil with the aid of a magic ring that grants him various supernatural powers. After debuting in All-American Comics, Alan Scott soon became popular enough to sustain his own comic book, Green Lantern. Around this time DC also began experimenting with fictional crossovers between its characters, leading towards a shared universe of characters. As one of the publisher's most popular heroes, Alan became a founding member of the Justice Society of America, one of the first such teams of "mystery men" or superheroes in comic books.

Harold "Hal" Jordan, one of the characters known as Green Lantern, is a superhero appearing in American comic books published by DC Comics. The character was created in 1959 by writer John Broome and artist Gil Kane, and first appeared in Showcase #22 (October 1959). Hal Jordan is a reinvention of the previous Green Lantern, who appeared in 1940s comic books as the character Alan Scott. While Alan Scott had been designed after characters from folklore and mythology, Kane instead drew visual inspiration for Hal from Hollywood actor Paul Newman.

Hal Jordan is a former fighter pilot who works for Ferris Aircraft as a test pilot, a member and occasionally leader of an intergalactic police force called the Green Lantern Corps, as well as a founding member of the Justice League, DC's flagship superhero team, alongside well-known heroes such as Batman, Superman, and Wonder Woman. He fights evil across the universe with a power ring that channels willpower into energy constructs. As Green Lantern, Hal is the assigned protector of Sector 2814, which includes Earth, on behalf of the Guardians of the Universe. His ring grants him powers of flight, space travel, and the ability to create shields, weapons, and even his uniform. Hal's on-again off-again love interest is Carol Ferris, who has also at times served as his enemy Star Sapphire. Other villains in Hal's stories include the psychic mutant Hector Hammond, avatar of death Nekron, and his archenemy, Sinestro, Hal's corrupt former Green Lantern mentor.

Dennis "Denny" Joseph O'Neil (May 3, 1939 – June 11, 2020) was an American comic book writer and editor, principally for Marvel Comics and DC Comics from the 1960s through the 1990s, and Group Editor for the Batman family of titles until his retirement.

His best-known works include Green Lantern/Green Arrow and Batman with Neal Adams. For Batman, the team is credited with returning the character to his dark pulp fiction roots, in contrast to the campy Batman television series of the 1960s. However, comics historian Les Daniels considers O'Neil's "vengeful obsessive-compulsive" Batman to be an original interpretation that has influenced all subsequent portrayals of the character. It was during this run that O'Neil co-created the Batman villains Ra's al Ghul and Talia al Ghul. During their Green Lantern/Green Arrow run, O'Neil and Adams introduced a mature, realistic tone through stories such as "Snowbirds Don't Fly", in which Green Arrow's ward Roy Harper is revealed to have become addicted to drugs. They also created and introduced the Green Lantern character John Stewart in 1971.

Neal Adams (June 15, 1941 – April 28, 2022) was an American comic book artist. He was the co-founder of the graphic design studio Continuity Associates, and was a creators-rights advocate who helped secure a pension and recognition for Superman creators Jerry Siegel and Joe Shuster. During his career, Adams co-created the characters John Stewart, Man-Bat, and Ra's al Ghul for DC Comics.

After drawing the comic strip based on the television drama Ben Casey in the early 1960s, Adams was hired as a freelancer by DC Comics in 1967. Later that year, he became the artist for the superhero character Deadman in the science fiction comic book Strange Adventures. Adams and writer Dennis O'Neil collaborated on influential runs on Batman and Green Lantern/Green Arrow in the early 1970s. For Batman, the duo returned the Batman character to his gothic roots as a contrast to the Batman television series of the 1960s. During their Green Lantern/Green Arrow run, O'Neil and Adams introduced a mature, realistic tone through stories such as "Snowbirds Don't Fly", in which Green Arrow's ward Roy Harper is revealed to have become addicted to drugs. The duo created and introduced the Green Lantern character John Stewart in 1971.

John Stewart is one of the principal superheroes known as Green Lantern appearing in American comic books published by DC Comics. The character was created by Dennis O'Neil and Neal Adams, and first appeared in Green Lantern (Volume 2) #87 (December 1971/January 1972). Stewart's original design was based on actor Sidney Poitier and he was one of the first African-American superheroes to appear in DC Comics.

Today John Stewart is one of the most popular and high-profile black characters in American comic books. Although a starring character in Green Lantern comics since the 1970s, he had a relatively low profile in mainstream popular culture until his adaptation for the 2000s animated series Justice League and Justice League Unlimited, voiced by Phil LaMarr. This led to an increase in the character's profile in comics, including a starring role in Justice League comics, and a massive expansion in the character's availability in DC Comics toys and merchandise. Wayne T. Carr was cast as John Stewart in the DC Extended Universe (DCEU) director's cut Zack Snyder's Justice League (2021) but his role was ultimately cut from the film. Aaron Pierre will portray the character in the DC Universe, beginning with the TV series Lanterns (2026).