TheGalactic Golem is a solar-powered creature created byLex Luthor who is an enemy ofSuperman.^[1] CreatorLen Wein said that he created the Golem "because I needed somebody Superman could hit! The problem with Superman's rogues' gallery was, they were allthinkers...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 followingCrisis on Infinite Earths.

Paul Gambi is a tailor inCentral City and associate of theRogues.^[3][4][5] He later created the "ultimate super-costume", which was first worn by serial killerDell Merriwether until he was defeated by Flash andGreen Lantern and sentenced to theelectric 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 inBatman: The Brave and the Bold #15.

Gamesman is the name of a fictional character appearing in American comic books published by DC Comics.

Gamesman is a mercenary. He kidnappedAnimal Man's daughter Maxine Baker and imprisoned her in the Red. At the time whenAquaman was blinded byPoseidon for besting Triton, Animal Man sought out Aquaman for help. Animal Man draws upon the strength of thesperm whale Namek to damage Gamesman's armor causing him to flee Both of them managed to free Maxine as Animal Man taps into the fight abilities of agull to pursue Gamesman while Aquaman keeps Maxine safe.^[8]

During the "Infinite Crisis" storyline, Gamesman appears as a member ofAlexander Luthor Jr.'sSecret Society of Super Villains.^[9]

Allegra Garcia is a character appearing inAmerican comic books published byDC Comics. She is the daughter of supervillainEduardo Reyes / Wavelength, and inherited similar light manipulation powers.^[10][11]

Allegra Garcia was raised in the Santa Marta slums ofRio de Janeiro by her foster parents Ramon Garcia and Esperanza Garcia. Upon emigrating toGotham 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 toArkham Asylum. To reunite with his daughter after some villains he knew saw Allegra, Wavelength hiredDeathstroke and his version of the Titans to spring her out of Arkham Asylum, fighting throughBatman 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.^[12]

Allegra Garcia /Wavelength appears inThe Flash, portrayed by Kayla Compton.^{[10][13][14][15]} This version is a young metahuman with abilities based on theelectromagnetic spectrum who wants to become a reporter. Despite coming from a criminal background and having been previously incarcerated inIron 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 byBarry Allen. Afterwards, she gets a job interning atIris West-Allen'sCentral City Citizen newspaper. Allegra later investigatesBlack Hole, helps Team Flash stop various supervillains, reforms her cousin, develops a protégé-esque acquaintance withNash Wells, and enters a relationship withChester P. Runk.

• Additionally, Compton portraysMaya, Allegra's Earth-719 counterpart.

Esperanza Garcia is a character appearing inAmerican comic books published byDC Comics. She is the adoptive mother ofAllegra Garcia.^[16]

Esperanza Garcia appears inThe Flash, portrayed by Alexa Barajas and voiced by Erika Soto in theseventh season. This version isAllegra Garcia's cousin and possesses similar electromagnetic spectrum-based abilities as her.^[16] Esperanza is presumed dead following the explosion ofS.T.A.R. Labs' particle accelerator, but is secretly taken in, revived, and trained to become the assassinUltraviolet byBlack Hole. Amidst this, Black Hole scientist Dr. Olsen removed her vocal cords and gave her a mask to help her speak. After making minor appearances in thesixth 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.^[17] Afterwards, he joins theBrotherhood of Evil and battles theDoom Patrol while occasionally working with them for his own gain.^[18] In "Dawn of DC", Garguax is depicted as the emperor of the Moon.^[19]

• Garguax appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]
• Garguax appears in theDoom 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 byBilly Boyd) who later betrays and kills him.

Garn Daanuth is a fictionalsupervillain introduced inThe Warlord #62 (July 1982). His character is the major antagonist in bothArion, Lord of Atlantis andArion 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 theDC Universe, he serves as a prominent evil figure in ancient Atlantis's history and the former ruler ofMu, whose people culturally resembleancient Egyptians. He is also alleged to be an ancestor of the Titans hero,Tempest (formerly Aqualad)^[21] and a distant relative to significant DC characters such asAquaman,Ocean Master, andZatanna 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 ancientAtlantean government.^[22][23][24]

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

• Garn Daanuth appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]
• An original, contemporary incarnation of Garn Daanuth appears inYoung Justice (2010), voiced byRobbie Daymond.^[25] This version is a descendant of the original Garn Daanuth and a former royal guard and Atlantean purist.^[26]

Joan Garrick is a fictional character fromDC Comics, asupporting character and romantic interest ofJay Garrick / The Flash.

The character was created byGardner Fox andHarry Lampert, and first appeared inFlash 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 ofEarth-Two.^{[27][28][29][30][31]}

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 theFlash. The Flash helped Joan when the former's father was kidnapped. She would remain a girlfriend and confidante to the Flash.^[32][33] UnlikeLois Lane andSuperman, Joan was always aware of the Flash's secret identity.^[34] The events ofCrisis on Infinite Earths reconnected both Jay and Joan and the entireKeystone City citizens as being in a coma untilBarry Allen revived the two. The couple ultimately married, and Jay retired from theJustice Society of America for a while until later returning to the group.^[35][36]

Joan was described as an essential part of the Golden Age Flash's life in later decades by Mark Ginnochio of Comicbook.com.^[37] Joan and Jay's marriage is cited as being "among the most popular of DC's earliest married characters" by Vaneta Rogers ofNewsarama.^[36] Jim Beard in the bookThe Flash Companion wrote positively of the character's depiction bySheldon Mayer which he felt was an example of "strong females" at the time. John Wells, in the same book, comparedGardner Fox's deriving of the character to other works of characters likeDian Belmont ofSandman, Inza Cramer ofDoctor Fate andShiera Hall ofHawkman that the female romantic interests were not just lovers but also confidantes of their respective superheroes as depicted at the time.^[38]

In "The New Golden Age", it is revealed that Joan and Jay had a child namedJudy Garrick (also known as Boom) before she mysteriously vanished.^[39] In reality, theTime Masters had kidnapped her in an attempt to save her from being killed byDoctor Manhattan's alterations to the timeline, and she is eventually recovered and transported to the present day.^[40]

• Joan Garrick appears inYoung Justice, voiced byKath Soucie.^[41] This version, alongside Jay Garrick, served asBart Allen's legal guardian following his arrival in the past, before she died off-screen from an unspecified illness.
• Joan Williams appears inThe Flash, portrayed byMichelle Harrison.^[42] This version is theEarth-3 counterpart ofNora Allen.

Garv is an alien Dryad, a rock-like being, who joinedVril Dox and his teams, theL.E.G.I.O.N. and theR.E.B.E.L.S., and marrying fellow teammember,Strata.

Gehenna is asuperhero in theDC Universe. She is a clone ofVictor Hewitt who is rescued byFirestorm (Jason Rusch). Her telepathic ability is shown to be limited to those participating in the Firestorm matrix and strongest with Jason. She becomes a romantic interest for Jason throughoutFirestorm: The Nuclear Man (vol. 2) and a participant in the matrix. She is killed byDeathstorm inBlackest Night #3 (September 2009).

TheGeomancer is the name of two supervillains in DC Comics.^[43]

Adam Fells was a hired gun with earth-manipulating abilities, a member of theInjustice Society, and an enemy of theJustice Society of America.^{[44][45][46][47]} He is later placed in suspended animation byUltra-Humanite and accidentally killed byIcicle when he tries to free him.^[48][49]

An unnamed man with similar powers became the second Geomancer and a member of the Injustice Society.^[50]

• The Adam Fells incarnation of Geomancer appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]
• The Adam Fells incarnation of Geomancer appears inThe Flash, portrayed by Adam Stafford.^[43]

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

Khan is aSingaporean vigilante who was trained alongsideBatman early in his career but split apart, eventually taking on the "Ghost-Maker" mantle utilizing a high-tech suit and several vehicles. After theJoker War, Ghost-Maker becomes the leader ofBatman Incorporated andClownhunter's mentor.^[51]

Dr. Asa Gilmore is a character appearing inDC Comics. The character first appeared inThe Flash (vol. 2) #144 (January 1999), and was created byMark Waid andBrian Augustyn. He was behind theorigin story ofMalcolm Thawne /Cobalt Blue. Gilmore's negligence killed thecon artist Thawne family's child so he covered this with Malcolm and lied about beingstillborn to the Allen family. Malcolm tracked down Gilmore for the truth and murdered the doctor in a rage.^[52]

Summer Gleeson is a news reporter from Gotham City. She was originally created byPaul Dini andBruce Timm for theBatman: The Animated Series in 1992 where she was voiced byMari Devon.

Gleeson was later introduced to the comics inBatman: Gotham Knights #33 (2002)

Summer Gleeson appears in flashbacks depicted inThe Penguin episode "Cent'Anni", portrayed by Nadine Malouf. This version was said to have been killed by theHangman while investigating the Falcone crime family.

Golden Eagle is the name of twofictionalcharacters published byDC Comics.

The original Golden Eagle isCharley Parker, an orphan living in Midway City who idolizedHawkman.^[53] 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 joinsTitans West.^[54][55][56]

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

InHawkman (vol. 4), Charley Parker is reimagined as acourier 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 ofHawkman.^[57] After Hall is seemingly killed in battle, Parker becomes the new Hawkman and is revealed to beCh'al Andar, the son of the ThanagarianFel Andar and the humanSharon Parker.^[58][59] However, he attacksKendra 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.^[60][61][62]

The second, unnamed Golden Eagle is awhite supremacist and member of theAryan Brigade who is equipped with mechanical wings.^[63]

• The Charley Parker incarnation of Golden Eagle appears inTeen Titans Go! #50 as a potential new member of the titular group.
• Golden Eagle appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]

Goldface is an enemy ofGreen Lantern and theFlash. He was created byGardner Fox andGil Kane, and first appeared inGreen 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, marriesAmunet Black / Blacksmith, moves toKeystone City, and becomes the commissioner of Union 242.^[64]

• Goldface appears inJustice League Unlimited, voiced byLex Lang albeit uncredited. This version is a member ofGorilla Grodd'sSecret Society.
• Goldface appears inThe Flash, portrayed byDamion Poitier.^[65] 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.
• An original incarnation of Goldface namedTajz appears inGreen Lantern: The Animated Series #7.^[66] This version is an alien from the planet Volkreg and a former friend ofRazer whom theRed Lantern Corps rescued from a war and empowered with yellow crystals.
• Goldface appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]

James Gordon Jr. is a character appearing in American comic books published byDC Comics. The character, created byFrank Miller andDave Mazzucchelli, first appeared inBatman #407 (May 1987). He is the son ofJames "Jim" Gordon Sr. andBarbara Kean, and the brother ofBarbara Gordon.^[67]

James moved to Chicago with his mother who divorced the elder Gordon. After his introduction inBatman: Year One, the character appeared almost exclusively in comics set during the Year One era, and went virtually unmentioned in present day.Scott Snyder's storyBatman: The Black Mirror reintroduced James as an adult, and establishes that he is asociopath who tortures and kills for pleasure. He is institutionalized as a teenager after he disfigures a school bus driver who insulted him. After he is released years later, he commits a series of brutal murders, while trying to frame theJoker for his crimes. After nearly killing his mother and capturing his sister, James is apprehended by his father and Batman (Dick Grayson), and institutionalized inArkham Asylum.^[68]

InThe New 52, James appears in theBatgirl series. He escapes from Arkham, and begins stalking his sister who he views as a rival for his father's affection. The series reveals that he deliberately caused their parents' divorce: he killed a cat his mother had bought for Barbara and then threatened to kill his sister if she did not leave the family and threatened to kill Barbara if she tried to contact them ever again.^[69][70]

• James Gordon Jr. appears inThe Dark Knight trilogy, portrayed by Hayden Nickel inBatman Begins andNathan Gamble inThe Dark Knight.^[71]
• Elements of the character are amalgamated withJack the Ripper inBatman: Gotham by Gaslight.^[72]

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 intoBatman's body. However, Batman manages to escape and defeat him.^[73]

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.^[74][75]Sinestro later steals Gorilla Boss' brain and uses it as a power source before Batman stops him and returns Gorilla Boss to his body.^[76]

Gorilla Grodd later mind-controls Gorilla Boss,Congorilla,Djuba,Monsieur Mallah, andSam Simeon. However, Grodd's psychic abilities inadvertently damage his brain, freeing them.^[77]

• Gorilla Boss appears in theBatman: The Brave and the Bold episode "Gorillas in our Midst!", voiced byDiedrich Bader. This version is a member of G.A.S.P. (Gorillas and Apes Seizing Power) who sports a white hair streak and is capable of speech.
• Gorilla Boss appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]

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

Goth was ademon who once posed as a rock star named Limbo. He once targeted an anti-aging formula for Contessa. Goth later passed himself off as a horror movie actor, whose activities attracted the attention ofNightwing. When Goth started to lure children to Dis, theTeen Titans sprung into action and saved the kids while Goth got away.^[78]

Goth also created a group ofWildebeests, who resemble hybrids of humans and theirnamesakes.^[79]

During the "Infinite Crisis" storyline, Goth appears as a member ofAlexander Luthor Jr.'sSecret Society of Super Villains.^[80]

Gotham (Henry Clover Jr.) andGotham Girl (Claire Clover) were characters created byDC Comics, debuting inDC Rebirth. They were created byTom King andDavid Finch.^[81]

The Clovers are twins with Superman-like powers which they bought with their family's money, trading in their lives for them as the powers would affect their lifespan. The two assisted Batman againstSolomon Grundy and theKobra Cult.^[82] Henry Jr. was killed by thePsycho Pirate while an unstable Claire later joined theFlashpointBatman (Thomas Wayne).^[83]

Milos Grapa is a fictional character appearing in American comic books published by DC Comics. He wasCarmine Falcone's most loyal bodyguard, who fell victim of theHoliday Killer in Christmas.^[84]

• Milos Grapa appears inThe Penguin episode "Cent'Anni", portrayed byJames Madio. This version was Carmine Falcone's former bodyguard who eventually became the Falcone family'sconsigliere before he is killed bySofia Falcone.
• Milos Grapa makes a non-speaking appearance inBatman: The Long Halloween.

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

Ulysses Hazard is a soldier who operated duringWorld War II.^[85] His grandson Percy Hazard operated as Hazard of Squad K.^[86]

Tyson Sykes is aCheckmate agent and one of their Rooks who was later injected with a formula containingStarro DNA.^[87]

• The Ulysses Hazard incarnation of Gravedigger appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]
• The Tyson Sykes incarnation of Gravedigger appears in thethird season ofBlack Lightning, portrayed byWayne Brady.^[88] This version fought in World War II, gained his powers through a government experiment, was given a formula created byHelga Jace that maintained his youth, and isBlack Lightning's great-uncle. After becoming disillusioned by racism during WWII, Sykes defected toMarkovia 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 anA.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 insideCyborg 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 theCrime Syndicate of America.^[89][90]

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.^[91][92]

During the "Darkseid War" storyline,Owlman downloads Grid intoMetron's Mobius Chair before the two are seemingly killed by apowerful entity.^[93][94][95]

• Grid appears inDoom Patrol, voiced by an uncredited actor. Similar to the comics, this version is Cyborg's computer AI. While Cyborg is working with theDoom 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 fatherSilas Stone.^[96][97][98]
• Grid appears as a character summon inScribblenauts Unmasked: A DC Comics Adventure.^[20]
• Grid appears as a "Premier Skin" for Cyborg inInjustice 2, voiced byKhary Payton.^[99] This version is an android clone of Cyborg created byBrainiac.
• Grid appears inLego DC Super-Villains, voiced byBumper Robinson. This version is Cyborg's Earth-3 counterpart and a member of the Crime Syndicate.^[100] After the Justice League go missing, Grid and the Crime Syndicate pose as the Justice Syndicate to take advantage of the situation. While fighting theLegion of Doom, Grid is defeated and destroyed byDeadshot,Captain Boomerang, the Rookie,Harley Quinn,Catwoman, andSolomon Grundy.

Gridlock is an alias used by two fictionalsupervillains appearing in American comic books published byDC Comics.

Abner Girdler was a specialist in urban planning and new transportation technologies at Technodyne. He proposed to build a monorail inManchester, 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 byImpulse.

The second version of Gridlock first appeared inBat-Mite #2 (September 2015), and was created byDan 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 inThe Flash episode "Nora", portrayed byDaniel Cudmore.^[101] This version isWilliam Lang, a kinetic energy-absorbingmetahuman. After attacking an airplane, Gridlock is defeated by theFlash,Kid Flash, andXS and later killed byCicada while being transported to prison.

Griffin Grey is a fictional character appearing inThe Flash created byDanny Bilson andPaul De Meo set duringOne Year Later.^[102]

Griffin was a friend ofBart Allen while inKeystone 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 keptJay Garrick young, but could not. He then became a villain, and during a fight with Bart as the Flash, he was overpowered and died.^[103]

Griffin appears inThe Flash episode "Back to Normal", portrayed by Haig Sutherland.^[104] This version was granted superhuman strength fromS.T.A.R. Labs' particle accelerator explosion, which also caused him to rapidly age. He attempts to findHarry Wells to seek a cure, but ultimately fails and dies in a fight with theFlash.

Grimbor the Chainsman (Markx Grimbor) is an enemy of theLegion of Super-Heroes who specializes in traps, particularly chains. He was created byJim Shooter andMike Grell, and first appeared inSuperboy #221 (November 1976).

Prior toZero 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.^[105]

Grimbor the Chainsman appears inLegion of Super Heroes, voiced byLex Lang.^[106]

Mike "Machine" Gunn is a fictional character appearing in American comic books published by DC Comics. He is a member ofMoxie Mannheim'sIntergang 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.^[107]

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