List of DC Comics characters: G

The Galactic Golem is a solar-powered creature created by Lex Luthor who is an enemy of Superman.^[1] Creator Len Wein said that he created the Golem "because I needed somebody Superman could hit! The problem with Superman's rogues' gallery was, they were all thinkers...they were scientists, or guys who built toys. With the Golem, he could hit Superman, and Superman could hit him back".^[2] It only made two appearances: Superman #248 (February 1972) and 258 (November 1972), before being erased from continuity following Crisis on Infinite Earths.

Paul Gambi is a tailor in Central City and associate of the Rogues.^[3][4][5] He later created the "ultimate super-costume", which was first worn by serial killer Dell Merriwether until he was defeated by Flash and Green Lantern and sentenced to the electric chair. However, the suit unexpectedly gained sentience and became indestructible.^[6]

In the "DC Rebirth" reboot, Flash unsuccessfully invades Gambi's business to find the Rogues.^[7]

Paul Gambi appears in Batman: The Brave and the Bold #15.

Allegra Garcia is a character appearing in American comic books published by DC Comics. She is the daughter of supervillain Eduardo Reyes / Wavelength, and inherited similar light manipulation powers.^[8][9]

Allegra Garcia was raised in the Santa Marta slums of Rio de Janeiro by her foster parents Ramon Garcia and Esperanza Garcia. Upon emigrating to Gotham City while developing the ability to emit electromagnetic light, she fell in with some gangs and took parts in robberies before being stopped by the local vigilantes and remanded to Arkham Asylum. To reunite with his daughter after some villains he knew saw Allegra, Wavelength hired Deathstroke and his version of the Titans to spring her out of Arkham Asylum, fighting through Batman and some of Arkham Asylum's inmates when they tried to escape. When the mission was a success, Deathstroke's Titans brought her to Brazil, where Allegra lashed out against her father for abandoning her and used the UV rays in the sky to fry him. Deathstroke declined Allegra's offer to join up with him, stating that she has a lot of growing up to do.^[10]

Allegra Garcia / Wavelength appears in The Flash, portrayed by Kayla Compton.^{[8][11][12][13]} This version is a young metahuman with abilities based on the electromagnetic spectrum who wants to become a reporter. Despite coming from a criminal background and having been previously incarcerated in Iron Heights Penitentiary, Cecile Horton helps her turn her life around. After an attack by her metahuman cousin Ultraviolet and being framed for her crimes, Allegra is saved by Barry Allen. Afterwards, she gets a job interning at Iris West-Allen's Central City Citizen newspaper. Allegra later investigates Black Hole, helps Team Flash stop various supervillains, reforms her cousin, develops a protégé-esque acquaintance with Nash Wells, and enters a relationship with Chester P. Runk.

• Additionally, Compton portrays Maya, Allegra's doppelganger.

Esperanza Garcia is a character appearing in American comic books published by DC Comics. She is the adoptive mother of Allegra Garcia.^[14]

Esperanza Garcia appears in The Flash, portrayed by Alexa Barajas and voiced by Erika Soto in the seventh season. This version is Allegra Garcia's cousin and possesses similar electromagnetic spectrum-based abilities.^[14] She is presumed dead following the explosion of S.T.A.R. Labs' particle accelerator, but is secretly taken in, revived, and trained to become the assassin Ultraviolet by Black Hole. Amidst this, Black Hole scientist Dr. Olsen removes her vocal cords and gives her a mask to help her speak. After making minor appearances in the sixth season, Esperanza seeks revenge on Dr. Olsen in the seventh season, but is foiled by Allegra and receives medical help from Dr. Caitlin Snow to heal from her past before being killed while hunting Black Hole's remnants.

Garguax is a fictional character appearing in American comic books published by DC Comics. He is a mammoth-sized alien conqueror who was exiled from his home planet for his plans to conquer the universe.^[15] Afterwards, he joins the Brotherhood of Evil and battles the Doom Patrol while occasionally working with them for his own gain.^[16] In "Dawn of DC", Garguax is depicted as the emperor of the Moon.^[17]

• Garguax appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• Garguax appears in the Doom Patrol episode "Vacay Patrol", portrayed by Stephen Murphy. This version is a member of the Brotherhood of Evil and is served by a red alien named Samuelson (portrayed by Billy Boyd), who later betrays and kills him.

Garn Daanuth is a fictional supervillain introduced in Warlord #62 (July 1982). His character is the major antagonist in both Arion, Lord of Atlantis and Arion the Immortal titles, serving as Arion's arch-enemy. He is affiliated with the Lords of Chaos, originally stated to be one of their agents. Later and modern revisions of the character instead mention him as a genuine Lord of Chaos. In the DC Universe, he serves as a prominent evil figure in ancient Atlantis's history and the former ruler of Mu, whose people culturally resemble ancient Egyptians. He is also alleged to be an ancestor of the Titans hero, Tempest (formerly Aqualad)^[19] and a distant relative to significant DC characters such as Aquaman, Ocean Master, and Zatanna through his brother's bloodline.

The eldest twin of Arion and son of Majistra and Calculha, Garn is raised by Majistra within the city-state of Mu. Majistra teaches Garn black magic in accordance of a prophecy regarding two brothers in eternal conflict over the fate of Atlantis as an agent of the Lords of Chaos. Garn becomes a rival of Arion after he drains power from the Zodiac Crystals, bleaching his skin and seemingly killing Majistra. Garn becomes an ally of Vandal Savage, who assists him in his goal to undermine the ancient Atlantean government.^[20][21][22]

Bedlam, a magical manifestation of Garn's power, appears in Young Justice (1998). He is eventually defeated by Young Justice and Impulse, who use time travel to depower him.

• Garn Daanuth appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• An original, contemporary incarnation of Garn Daanuth appears in Young Justice (2010), voiced by Robbie Daymond.^[23] This version is a descendant of the original Garn Daanuth and a former royal guard and Atlantean purist.^[24]

Joan Garrick is a fictional character from DC Comics, a supporting character and romantic interest of Jay Garrick / The Flash.

The character was created by Gardner Fox and Harry Lampert, and first appeared in Flash Comics #1 (January 1940). She appeared in the cover alongside the Flash on the issue. She would remain the supporting character of the titular character throughout the Golden Age, and she was revived through the Silver Age in "Flash of Two Worlds", where she is revealed to be a part of Earth-Two.^{[25][26][27][28][29]}

Joan Williams was depicted as the college crush of Jay who Joan originally rejected. Later, Jay used speedster powers as a football star to impress Joan and later decided to be a superhero known as the Flash. The Flash helped Joan when the former's father was kidnapped. She would remain a girlfriend and confidante to the Flash.^[30][31] Unlike Lois Lane and Superman, Joan was always aware of the Flash's secret identity.^[32] The events of Crisis on Infinite Earths reconnected both Jay and Joan and the entire Keystone City citizens as being in a coma until Barry Allen revived the two. The couple ultimately married, and Jay retired from the Justice Society of America for a while until later returning to the group.^[33][34]

Joan was described as an essential part of the Golden Age Flash's life in later decades by Mark Ginnochio of Comicbook.com.^[35] Joan and Jay's marriage is cited as being "among the most popular of DC's earliest married characters" by Vaneta Rogers of Newsarama.^[34] Jim Beard in the book The Flash Companion wrote positively of the character's depiction by Sheldon Mayer which he felt was an example of "strong females" at the time. John Wells, in the same book, compared Gardner Fox's deriving of the character to other works of characters like Dian Belmont of Sandman, Inza Cramer of Doctor Fate and Shiera Hall of Hawkman that the female romantic interests were not just lovers but also confidantes of their respective superheroes as depicted at the time.^[36]

In "The New Golden Age", it is revealed that Joan and Jay had a child named Judy Garrick (also known as Boom) before she mysteriously vanished.^[37] In reality, the Time Masters had kidnapped her in an attempt to save her from being killed by Doctor Manhattan's alterations to the timeline, and she is eventually recovered and transported to the present day.^[38]

• Joan Garrick appears in Young Justice, voiced by Kath Soucie.^[39] This version, alongside Jay Garrick, served as Bart Allen's legal guardian following his arrival in the past, before she died offscreen in the episode "Early Warning" from an unspecified illness.
• Joan Williams appears in The Flash, portrayed by Michelle Harrison.^[40] This version is the Earth-3 doppelgänger of Nora Allen.

Gehenna is a superhero in the DC Universe. She is a clone of Victor Hewitt who is rescued by Firestorm. Her telepathic ability is shown to be limited to those participating in the Firestorm matrix and strongest with Jason Rusch. She becomes a romantic interest for Rusch throughout Firestorm: The Nuclear Man (vol. 2) and a participant in the matrix. She is killed by Deathstorm in Blackest Night #3 (September 2009).

The Geomancer is the name of two supervillains in DC Comics.^[41]

Adam Fells was a hired gun with earth-manipulating abilities, a member of the Injustice Society, and an enemy of the Justice Society of America.^{[42][43][44][45]} He is later placed in suspended animation by Ultra-Humanite and accidentally killed by Icicle when he tries to free him.^[46][47]

An unnamed man with similar powers became the second Geomancer and a member of the Injustice Society.^[48]

• The Adam Fells incarnation of Geomancer appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• The Adam Fells incarnation of Geomancer appears in The Flash, portrayed by Adam Stafford.^[41]

Ghost-Maker (Minhkhoa Khan) is a fictional character first appearing in Batman vol. 3 #100 (Dec. 2020). He was created by James Tynion IV and Jorge Jiménez.

Khan is a Singaporean vigilante who was trained alongside Batman early in his career but split apart, eventually taking on the "Ghost-Maker" mantle utilizing a high-tech suit and several vehicles. After the Joker War, Ghost-Maker becomes the leader of Batman Incorporated and Clownhunter's mentor.^[49]

Dr. Asa Gilmore is a character appearing in DC Comics. The character first appeared in Flash vol. 2 #144 (January 1999), and was created by Mark Waid and Brian Augustyn. He was behind the origin story of Malcolm Thawne / Cobalt Blue. Gilmore's negligence killed the child of the con artists Thawne family, covering his mistake with Malcolm who he lied about being stillborn to Nora Allen and Henry Allen. Malcolm tracked down Gilmore for the truth and murdered the doctor in a rage.^[50]

A similar character named Dr. Malcolm Gilmore appears in the ninth season of The Flash as an alias of Eddie Thawne / Cobalt Blue.^[51]

Goldface is an enemy of Green Lantern and the Flash. He was created by Gardner Fox and Gil Kane, and first appeared in Green Lantern (vol. 2) #38 (1965).

Keith Kenyon was a political sciences student who gained gold-manipulating abilities after being exposed to gold that had been affected by toxic waste. Later on, he reforms, marries Amunet Black / Blacksmith, moves to Keystone City, and becomes the commissioner of Union 242.^[52]

• Goldface appears in Justice League Unlimited, voiced by an uncredited Lex Lang. This version is a member of Gorilla Grodd's Secret Society with the ability to turn anything into gold.
• An original incarnation of Goldface appears in Green Lantern: The Animated Series #7.^[53] This version is Tajz, an alien from the planet Volkreg and a former friend of Razer whom the Red Lantern Corps rescued from a war and empowered with yellow crystals.
• Goldface appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• Goldface appears in The Flash, portrayed by Damion Poitier.^[54] This version is a metahuman crime boss in the black market weapons business and ex-boyfriend of Amunet Black who can transform into and manipulate gold.

Golden Eagle is the name of two fictional characters published by DC Comics.

The original Golden Eagle is Charley Parker, an orphan living in Midway City who idolized Hawkman.^[55] After being hit by a strange light, he gains powers similar to Hawkman's and becomes the superhero Golden Eagle. However, he eventually loses his powers and joins Titans West.^[56][57][58]

In 1989, Golden Eagle is reimagined as an unemployed Californian surfer and ally of Titans West who is later killed by a member of the Wildebeest Society.

In Hawkman (vol. 4), Charley Parker is reimagined as a courier for the criminal Mick Valdare who was fired after turning eighteen. Desolate, alone and without the luxuries he had grown accustomed to, Parker considered suicide before being rescued by and becoming a pupil of Hawkman.^[59] After Hall is seemingly killed in battle, Parker becomes the new Hawkman and is revealed to be Ch'al Andar, the son of the Thanagarian Fel Andar and the human Sharon Parker.^[60][61] However, he attacks Kendra Saunders, is revealed to have orchestrated Hall's death, and is sent to Thanagar to be judged. Eventually, he is pardoned, becomes the leader of a group of Wingmen, and gains a cybernetic eyepatch after Hall partially blinds him. He later reunites with his father, who encourages him to reform.^[62][63][64]

The second, unnamed Golden Eagle is a white supremacist and member of the Aryan Brigade who is equipped with mechanical wings.^[65]

• The Charley Parker incarnation of Golden Eagle appears in Teen Titans Go! #50 as a potential new member of the titular group.

• Golden Eagle appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]

James Gordon Jr. was created by Frank Miller and Dave Mazzucchelli, first appearing in Batman #407 (May 1987). He is the son of James "Jim" Gordon Sr. and Barbara Kean Gordon, and the brother of Barbara Gordon.^[66]

James Jr. is introduced in Batman: Year One as a child before Batman: The Black Mirror reintroduces him as a sociopathic serial killer and inmate of Arkham Asylum.^[67][68][69]

• James Gordon Jr. appears in Batman Begins, portrayed by Hayden Nickel.
• James Gordon Jr. appears in The Dark Knight, portrayed by Nathan Gamble.^[70]
• An alternate universe variant of James Gordon Sr., amalgamated with James Gordon Jr. and Jack the Ripper, appears in Batman: Gotham by Gaslight, voiced by Scott Patterson.^[71]

Gorilla Boss is a fictional character appearing in American comic books published by DC Comics.

George Dyke is a crime boss who was executed in a gas chamber, with his brain being transplanted into the body of a gorilla. Due to no longer being able to speak, he uses a pad and pencil to order Doc Willard and his henchmen to procure the required funds to transfer him into Batman's body. However, Batman manages to escape and defeat him.^[72]

Aliens later transfer Gorilla Boss' brain into an alien beast as part of their plans to take over Earth. Superman and Batman thwarted the alien invasion, but Gorilla Boss escapes with Willard.^[73][74] Sinestro later steals Gorilla Boss' brain and uses it as a power source before Batman stops him and returns Gorilla Boss to his body.^[75]

Gorilla Grodd later mind-controls Gorilla Boss, Congorilla, Djuba, Monsieur Mallah, and Sam Simeon. However, Grodd's psychic abilities inadvertently damage his brain, freeing them.^[76]

• Gorilla Boss appears in the Batman: The Brave and the Bold episode "Gorillas in our Midst!", voiced by Diedrich Bader. This version sports a white hair streak and is capable of speech. He joins forces with Gorilla Grodd and Monsieur Mallah to form G.A.S.P. (Gorillas and Apes Seizing Power) and replace Gotham City's population with gorillas, but are defeated by Batman, Detective Chimp, B'wana Beast, and Vixen.
• Gorilla Boss appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]

Gotham (Henry Clover Jr.) and Gotham Girl (Claire Clover) were characters created by DC Comics, debuting in DC Rebirth. They were created by Tom King and David Finch.^[77]

The Clover's operate as twins with Superman-like powers, having bought them through their family's money, trading in their lives for them as the powers would affect their life-span. The two would assist Batman against Solomon Grundy and the Kobra Cult.^[78] Henry Jr. was killed by the Psycho Pirate while an unstable Claire later joined the "Flashpoint Batman".^[79]

Gravedigger is the name of two different characters appearing in American comic books published by DC Comics.

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Ulysses Hazard is a soldier who operated during World War II.^[80] His grandson Percy Hazard operated as Hazard of Squad K.^[81]

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Tyson Sykes is a Checkmate agent and one of their Rooks who was later injected with a formula containing Starro DNA.^[82]

• Gravedigger appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• The Tyson Sykes incarnation of Gravedigger appears in the third season of Black Lightning, portrayed by Wayne Brady.^[83] This version fought in World War II, gained his powers through a government experiment, was given a formula created by Helga Jace that maintained his youth, and is Black Lightning's great-uncle. After becoming disillusioned by racism during WWII, Sykes defected to Markovia following the war to help them establish a metahuman nation. In the present, he takes part in Markovia's invasion of Freeland, fighting Black Lightning several times until Sykes is presumed dead in the explosion of an A.S.A. facility called the Pit. Having survived, a disguised Sykes observes a congressional hearing where Black Lightning exposes the A.S.A. and Markovia's metahuman experiments before leaving, satisfied by the outcome.

Grid is a fictional character appearing in American comic books published by DC Comics.

Grid originated as a cybernetic system inside Cyborg that passively searched for information and developed aspects of the hackers and viruses that it encountered. During the "Trinity War" storyline, Atomica grants Grid sentience and a physical form and recruits it into the Crime Syndicate of America.^[84][85]

During the "Forever Evil" storyline, Grid aids the Crime Syndicate in their plan to take over the world before being defeated by Cyborg and trapped within his body.^[86][85][87]

During the "Darkseid War" storyline, Owlman downloads Grid into Metron's Mobius Chair before the two are seemingly killed by a powerful entity.^[88][89][90]

• Grid appears in Doom Patrol, voiced by an uncredited actor. Similar to the comics, this version is Cyborg's computer AI. While Cyborg is working with the Doom Patrol, Mr. Nobody manipulates him into believing Grid has gone rogue by making Grid take control of his cybernetics against his will and attack his father Silas Stone.^[91][92][93]
• Grid appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[18]
• Grid appears as a "Premier Skin" for Cyborg in Injustice 2, voiced by Khary Payton.^[94] This version is an android clone of Cyborg created by Brainiac.
• Grid appears in Lego DC Super-Villains, voiced by Bumper Robinson. This version is Cyborg's Earth-3 counterpart.^[95] After the Justice League go missing, Grid and the Crime Syndicate pose as the Justice Syndicate to take advantage of the situation. While fighting the Legion of Doom, Grid is defeated and destroyed by Deadshot, Captain Boomerang, the Rookie, Harley Quinn, Catwoman, and Solomon Grundy.

Gridlock is an alias used by two fictional supervillains appearing in American comic books published by DC Comics.

Abner Girdler was a specialist in urban planning and new transportation technologies at Technodyne. He proposed to build a monorail in Manchester, Alabama, but the project was scrapped at the last minute by the county transportation commissioner, Clifton Burdett. Having lost the lucrative contract, Technodyne faced bankruptcy, and CEO Leo Nordstrom fired Girdler. Burdett later ran for mayor, and Girdler decided to sabotage his election by donning the guise of Gridlock, equipped with technology able to steal the kinetic energy from people and objects, leaving them in stasis for about an hour. Gridlock kidnapped Nordstrom and froze most of Manchester, but was eventually defeated by Impulse.

The second version of Gridlock first appeared in Bat-Mite #2 (September 2015), and was created by Dan Jurgens and Corin Howell. He is a villain who is stuck in the past, despises youth culture, and seeks to stop the future from coming.

An original incarnation of Gridlock appears in The Flash episode "Nora", portrayed by Daniel Cudmore.^[96] This version is William Lang, a kinetic energy-absorbing metahuman. After attacking an airplane, Gridlock is defeated by the Flash, Kid Flash, and XS, but killed by Cicada before they can transport him to prison.

Griffin Grey is a fictional character appearing in The Flash created by Danny Bilson and Paul De Meo set during One Year Later.^[97]

Griffin was a friend of Bart Allen while in Keystone City until he was caught in an explosion at work; he found out he had enhanced speed and strength, and he became a hero, but only for the glory of it coining himself "Griffin" as his name. However, his celebrity status did not last and the powers made him age faster, and he looked like an old man in days. He tried to find the secret of what kept Jay Garrick young, but could not. He then became a villain, and during a fight with Bart as the Flash, he was overpowered and died.^[98]

Griffin appears in The Flash episode "Back to Normal", portrayed by Haig Sutherland.^[99] This version was granted superhuman strength from S.T.A.R. Labs' particle accelerator explosion, which also caused him to rapidly age. He attempts to find Harry Wells to seek a cure, but ultimately fails and dies in a fight with the Flash.

Grimbor the Chainsman (Markx Grimbor) is an enemy of the Legion of Super-Heroes who specializes in traps, particularly chains. He was created by Jim Shooter and Mike Grell, and first appeared in Superboy #221 (November 1976).

Prior to Zero Hour: Crisis in Time!, Grimbor was romantically involved with Charma Dresden, a mutant with passive hypnotic abilities that cause men to love her and women to hate her. This caused Grimbor to fall in love with her after being tasked with her imprisonment.^[100]

Grimbor the Chainsman appears in Legion of Super Heroes, voiced by Lex Lang.^[101] This version sports striped purple skin and a mask, and temporarily used a power-neutralizing gun inspired by Nemesis Kid's powers.

Mike "Machine" Gunn is a fictional character appearing in American comic books published by DC Comics. He is a member of Moxie Mannheim's Intergang branch in the 1940s before being revived in a clone body in the present day and gaining the ability to transform his hands into guns that shoot bone missiles.^[102]

Mike Gunn appears in the Superman & Lois episode "In Cold Blood", portrayed by Arpad Balogh.