List of DC Comics characters: M

Josephine MacDonald, also known as Josie Mac, is a police officer who had a promising career ahead of her, until she responded to a call and discovered the mayor's wife in bed with an exotic dancer. Four days after the incident, her mistake of embarrassing the mayor's wife got her moved to the Missing Persons department at the precinct. Josie made the best out of her transfer because, unknown to her colleagues, she possessed minor psychic powers, which allowed her to find things and people that are lost through picking up "messages" from inanimate objects.^[1][2]

Isla MacPherson is a history teacher at Gotham Academy.^[4] The character–created by Brendan Fletcher, Becky Cloonan, and Karl Kerschl–first appeared in Gotham Academy #1 (December 2014).

Heather Macy-Thawne is a character appearing in American comic books published by DC Comics. The character–created by Joshua Williamson and Carmine Di Giandomenico–first appeared in The Flash: Rebirth vol. 2 #1 (August 2016). She is an ancestor of Eobard Thawne (aka Professor Zoom and Reverse-Flash).^[5]

Madame Zodiac is first introduced as a "crime broker" for Poison Ivy and Catwoman. Zodiac promises both the criminals that they will come into conflict with the Earth-TwoHuntress (Helena Wayne), Batwoman (Kathy Kane), and Batgirl (Barbara Gordon), while in the commission of their crimes, but they would succeed. At the end of the story Poison Ivy and Catwoman are defeated but Zodiac evades capture after stealing a powerful mystical artifact.^[6]

An entity whom Madame Zodiac refers to as the "Adored One" possesses Batman's body, with magical duplicates of Batman being created for when the Adored One burns out his body. The possessed Batman briefly spars with Superman before being freed from the Adored One's control. Madame Zodiac is subdued by Superman, and Doctor Zodiac tells him about the mysterious prisoner. Superman shatters the walls of the cell, revealing the real Madame Zodiac chained to a wall. The Madame Zodiac who Doctor Zodiac had fallen in love with was a magical clone created by the Adored One. Madame Zodiac, Doctor Zodiac, and Superman confront the duplicate and the Adored One. Madame Zodiac is apparently killed by her evil duplicate, and both her duplicate and Doctor Zodiac are killed by the Adored One. Batman uses the Zodiac Idol to destroy the Adored One's containment sphere, dispersing it.^[7]

Major Victory is the code-name of four characters in DC Comics.

Mala, along with his brothers Kizo and U-Ban, is a native of the planet Krypton, and a former member of the science council. Some years before Krypton exploded, the trio attempted to take over the planet by threatening to remove all moisture from the atmosphere with one of their inventions. They were stopped by Superman's father Jor-El who placed them in suspended animation and sent them into outer space as an alternative to the death penalty.^[14][15] Mala and his brothers manage to escape on two occasions, but are returned to suspended animation each time.^[15][16]

Sebastien Mallory is a fast-rising junior executive at LexCorp. He and Jimmy Olsen hate each other.^[18]

Matches Malone is a character appearing in American comic books related to DC Comics. The character, created by Dennis O'Neil and Irv Novick, first appeared in Batman #242 (June 1972). He was originally a Gotham gang boss whom Batman attempted to recruit, but he was accidentally killed by a ricocheting bullet that was meant for Batman. As a result of this Bruce Wayne impersonated Matches in order to use his underworld contacts and to fool Ra's al Ghul.^[19]

Post-Crisis, the real Matches Malone was a small-time arsonist with his brother Carver Malone and who came to Gotham City early on in Batman's career, attracting Batman's attention when Carver was apparently murdered. After discovering that Malone had died as well, Batman adopted his identity as his own as nobody else knew of the death. Years later, Batman learned that Carver had committed suicide due to his guilt over a fire that he and Malone had started that resulted in the death of a homeless man. After operating underground for years by committing low-end robberies, Malone returned to Gotham after hearing reports of his activities, only to be shot by Scarface for his betrayal, surviving long enough to simply confess his role in events to Batman and Nightwing before dying. His last request was that Batman bury him next to his brother and avenge his death. Batman subsequently destroyed Scarface in 'revenge' for Malone's death.

Moxie Mannheim is the founder of Intergang and the father of Bruno Mannheim. He was killed by his rivals.^[21][22]

In post-Crisis continuity, Moxie had been in prison since the 1940s after being captured by the Newsboy Legion and was later released from prison. After being released, he briefly worked with his old ally Granny Goodness. After surviving a fall into a chasm, he works with Dabney Donovan to revive his henchmen Mike Gunn, Ginny McCree, Noose, and Rough House in youthful, superpowered bodies and transfer himself into a youthful body.^[23]

In Infinite Crisis, Moxie appears as a member of Alexander Luthor Jr.'s Secret Society of Super Villains until he is killed by Superboy-Prime.^[24] He is resurrected following the DC Rebirth relaunch.^[25]

Manticore is the name of several characters appearing in American comic books published by DC Comics.

Marauder is the name of several characters appearing in American comic books published by DC Comics.

March Harriet (Harriet Pratt; also called March Hare) is a small-time con artist and part-time escort who operated outside of Gotham City. She was recruited by Tweedledum and Tweedledee to join the Wonderland Gang which included a brainwashed Mad Hatter. Harriet acted as their version of the March Hare.^[45]

In 2016, DC Comics implemented a relaunch of its books called "DC Rebirth", which restored its continuity to a form much as it was prior to "The New 52". In this continuity, Harriet Pratt was born in East London before moving to Gotham City and becoming a thief. After being shot by security guards and left for dead, Harriet is nursed back to health by Jervis Tetch and joins his Wonderland Gang.^[46]

Clyde Mardon is a scientist who discovered a method to control weather, and the brother of Mark Mardon.^[49] Once Clyde died of a heart attack, Mark used his research to create a weather-manipulating wand and be the criminal Weather Wizard.^[50]

Hurrambi Marlo is the president of the fictional Middle Eastern country of Qurac, and was a recurring antagonist in DC Comics during the late Bronze Age, created by Marv Wolfman and Rich Buckler. Originally a military general, he came to a power in a coup that overthrew a pro-Western regime and established a military dictatorship in the country. His regime became notorious for diplomatic controversies, alleged state-sponsorship of terrorism, and usage of WMDs.^[53]

After coming to power, Marlo hired Cheshire to kidnap Adeline Kane in order to extract information from her that would help him in his upcoming invasion of neighboring Kyran. Her son, the Teen Titans member Jericho, went to Qurac to rescue her. Cheshire brings Jericho to Marlo, who reveals that he previously hired the Jackal to kill Jericho's father Slade Wilson. Jackal kidnapped Jericho and slit his throat, rendering him mute. After escaping, they confront Marlo as he was buying weapons for the upcoming invasion, but Jericho decides to pacify him.^[54] Later, Qurac obtained WMDs, and Marlo embarked on a quest to obtain a powerful substance called Promethium that would help Qurac become the strongest nation on Earth. Crossing lines again, Jericho stopped him in a battle.^[55]

Marlo was deposed after a Quraci protest, Superman was sent to send him on trial to the United States. Superman discovers that Marlo was merely a scapegoat for the US government's funding of terrorists in the Middle East after a failed assassination attempt on Marlo's life was ordered by the government.^[56]

Maya (Chandi Gupta) is an Indian superheroine in the DC Universe. She first appeared in Justice League Europe #47 (1993), and was created by Gerard Jones and Ron Randall.

Chandi Gupta is an Indian girl who developed the ability to generate fire and water at a young age. Her parents leave her in the care of a cult which they had become involved with, whose members believe her to be the reincarnation of Shiva. Chandi flees to London after realizing that the cult intends to offer her as a human sacrifice.

While in London, Chandi assumes the codename Maya and helps the Justice League Europe defeat Sonar. She is offered membership in the Justice League and accepts, having nowhere else to go.^[57]

Maya later learns that the cult who adopted her is affiliated with the Overmaster, who plans to destroy Earth. Overmaster takes control of Maya's mind and uses her against her teammates. Mahayogi, whom she had fought earlier with the League, sacrifices himself to free her. After confronting the Overmaster, Justice League Europe disbands. Maya reunites with her parents, who are revealed to possess fire-based powers similar to hers.^[58]

Mayflower is a member of the Force of July, a government-sponsored superhero team. She first appeared in Batman and the Outsiders Annual #1 (September 1984). She is later killed by Ravan of the Suicide Squad during the Janus Directive event.^[59]

Mayflower is shown to be alive in the Infinite Frontier continuity, where she is recruited by the Penguin, but she is soon killed in battle.^[9][10]

Nina Mazursky is a character who was originally created for the Flashpoint tie-in series Frankenstein and the Creatures of the Unknown #1 (2011). She was created by Jeff Lemire and Ibraim Roberson.^[60][61][62] The mainstream version first appeared in Frankenstein: Agent of Shade and was created by Lemire and Alberto Ponticelli.

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

Amanda McCoy is a scientist who works at the company LexCorp and was once extrapolated for information about Superman by Lana Lang.^[74]

Ginny "Torcher" McCree was a member of Moxie Mannheim's Intergang branch in the 1940s and the love interest of Mike Gunn. Upon her arrest, she was remanded to Arkham Asylum, where she died in 1943. In the present, Moxie has Dabney Donovan clone him and his dead gang members into new bodies, with McCree gaining pyrokinesis.^[23]

McCree later springs Mike Gunn out of prison as they avoid the police. After Gunn is shot and killed, McCree commits suicide by self-immolation.^[76]

Naomi McDuffie originates from an alternate universe where the degradation of Earth's ozone layer exposed Earth to a previously-unknown type of radioactive energy, causing 29 people from around the planet to develop superpowers. Naomi is the daughter of two of the eight remaining superhumans, with the rest either being killed or leaving Earth following a conflict. Zumbado, one of the remaining superhumans, tries to kill the infant Naomi. Consequently, her parents send her to Earth-0 for her safety and are killed in battle doing so. The infant ends up in a small Oregon town, where a Rannian ex-soldier and resident of the town, going by the name Greg McDuffie, witnesses her arrival, and adopts her. In Naomi's absence, Zumbado conquers Earth.

Naomi lives an ordinary life in her hometown raised by Greg and his human wife, who knows about her husband's secrets, until Superman crashes through the center of town in a battle with Mongul. This prompts a couple of citizens to talk about the previous time the town had an encounter with otherworldly beings. Having learned that the date of the incident was also the day she was adopted, Naomi questions whether she has a connection to superheroes and begins looking into her origins. Greg reveals his own origins to Naomi, before telling her about her arrival on Earth-0. He gives Naomi a device he found with her, which contains a message from her birth mother, and awakens her superpowers.

Following these events, Naomi flies to Metropolis, and meets Superman and Batman. She later joins the reformed Young Justice. Following the events of Dark Nights: Death Metal, Naomi joins the Justice League.

Her name is a reference to American comic creator Dyawne McDuffie.^[77]

Meanstreak is a member of the New Extremists who can create power painful energy spikes. She was with the New Extremists when they were members of Overmaster's Cadre.^[80]

Menace (Russell Tavaroff) he is a former friend of Luke Fox who became his enemy after being exposed to the Venom offshoot Snakebite, which gives him enhanced strength and durability, but damages his mind.^[81]

Menagerie is a name shared by two antiheroines in the DC Universe, both members of the Elite.^[82] The two are Puerto Rican sisters who are linked with a symbiotic alien weapon crèche called symbeasts.

Pamela first appears in Action Comics #775 (March 2001). While the origins of her powers are unclear in Action Comics #775, Manchester Black states that the rogue Men in Black (from the Department of Extranormal Operations) once picked up the dregs of society, turning them into weapons and selling them off to alien bidders. Black recruits Pam to be a member of the Elite. This group takes it upon themselves to "free the Earth of scum". They come into conflict with Superman during their first mission and Superman disables them following a showdown on Jupiter's moon, Io. The Elite are delivered into custody, but soon released by President Lex Luthor.^[83] During an assassination attempt on Luthor, Menagerie reveals to Superman that the Elite are acting against their wills. For her betrayal, Black places her in a vegetative state.^[84]

Sonja first appears in JLA #100 (August 2004). Following Manchester's apparent death, his sister Vera Black takes it upon herself to clear the family name and reassembles the Elite as a force for good. As Sister Superior, Vera convinces Pamela's sister, Sonja, to assume control of the alien cache as the second Menagerie. Vera then approaches the JLA with a proposition to form a sort of black ops JLA team: Justice League Elite.^[85]

Mentalla (Delya Castil) was a rejected Legion candidate who infiltrated the Fatal Five, but was found out and subsequently murdered by the Emerald Empress.

Dell Merriwether is a serial killer from Central City who was given the "ultimate super-costume" created by tailor Paul Gambi. He was defeated by the Flash and Green Lantern and sentenced to the electric chair.^[88]

Micron is a superhero, successor of the Atom, and member of Justice League Unlimited. He made his first appearance in the Batman Beyond episode "The Call" (November 2000), voiced by Wayne Brady.^[89]

Midas (real name) is a scientist working on a bacterial strain that would be able to revolutionize the treatment of toxic waste. After eco-terrorists attempt to steal the formula, Midas is exposed to toxic waste and transformed into a monster made of waste.^[91][92]

Mighty Bruce is a small-time criminal and computer wizard who becomes a cellmate of Major Disaster. He joins Disaster in the Injustice League alongside Big Sir, Clock King, Cluemaster, and Multi-Man.^[93]

Mighty Bruce is with the Injustice League when Maxwell Lord reworks the group as Justice League Antarctica and adds G'nort and Scarlet Skier to their ranks. After an incident involving killer penguins that the Justice League International helps them fight, followed by an earthquake that destroys Justice League Antarctica's base, Lord fires them and disbands the group.^[94]

Mikado is a character appearing in American comic books published by DC Comics. Created by Dennis O'Neil and Denys Cowan, he first appeared in The Question #8 (September 1987).

Jerry Spaulding is a physician who works at a hospital in a Hub City slum, performing emergency surgery on victims of urban violence. A lover of fine comedy, including Gilbert and Sullivan's comic opera The Mikado, Spaulding decides to take the fight to the people who had caused all the pain. Wearing a mask of Japanese design, he adopts the nom de guerre Mikado and begins a series of attacks on the people who were causing all the pain.

Mime (Camilla Ortin) was the daughter of a firework salesman named Oscar Ortin who had a disdain for loud noises. After the death of her parents, Camilla began practicing in the art of the mime artist. She started the Cameo Company until it went bankrupt driving her to a life of crime. She stole several bells from the churches across Gotham City before being apprehended by Batman and remanded to Arkham Asylum.^[95]

Mindboggler is a character appearing in American comic books published by DC Comics. Created by writer Joey Cavalieri and artist Rafael Kayanan, she first appeared in Firestorm (vol. 2) #29 (November 1984).^[96]

Leah Wasserman is a member of the Assassination Bureau, from whom she received the ability to generate illusions. In her first encounter with Firestorm, Mindboggler uses her powers to make him believe he is confronting an active volcano in Central Park and transmuting its fire into harmless Frisbees. Firestorm is in fact creating a rain of deadly razor blades, causing several civilians to believe he has gone insane.^[96][97]

Mindboggler later joins the Suicide Squad under Amanda Waller's leadership.^[96] After her squadmate Captain Boomerang sexually harasses Plastique, Mindboggler uses her powers to embarrass him. Humiliated, Boomerang refuses to save Mindboggler on their next mission, allowing her to be shot and killed.^[98][96] Following Mindboggler's death, the group Jihad utilizes a digital entity called Ifrit who possesses her appearance and personality.^[99]

Mirror Monarch is an alias utilized by several characters in DC Comics. The character, created by Geoff Johns and Francis Manapul, first appeared in The Flash (vol. 3) #1 (June 2010). The character is a heroic, futuristic member of the Renegades police force from the 25th century inspired by Mirror Master.

The first Mirror Monarch was killed by the Top to frame Barry Allen,^[100][101] and is succeeded by a second Mirror Monarch.^[102]

Angelo Mirti was Sofia Falcone's personal bodyguard during her time as capo of the Falcone crime family, until he was killed by the Joker.

Mister 103/Mister 104 (Jonathan Dubrovny) is a biochemist who suffered from a mental collapse according to Chief. He gained the ability to transform his body into various elements and became Mister 103, basing his name on the 103 chemical elements known at the time.^[104] After the 104th element rutherfordium is discovered, Dubrovny changes his codename to Mister 104.^[105]

During the "Infinite Crisis" storyline, Mister 104 appeared as a member of Alexander Luthor Jr.'s Secret Society of Super Villains.^[106]

Mister Handsome is a crime lord and a one-time enemy of Catwoman. He is killed and replaced by his wife Mary who assumes the mantle of Mister Handsome.

Mister Poseidon is a villain who wore rings that had different effects like a shrinking ring. He fought the Sea Devils and was defeated by them.^[109]

Mister Poseidon later constructed a ring that enabled him to break Ultivac out of the Fortress of Science outside of Metropolis. The two have a brief fight with the Forgotten Heroes, but manage to escape. Poseidon and Ultivac later met up with Enchantress, with the three assembling a group called the Forgotten Villains with Atom-Master, Faceless Hunter, and Kraklow.^[110]

During the "Infinite Crisis" storyline, Poseidon appears as a member of Alexander Luthor Jr.'s Secret Society of Super Villains.^[111]

Mister Terrible is the name of several characters appearing in American comic books published by DC Comics.

Mister Toad is humanoid toad, a minion of Professor Pyg and a member of the Circus of Strange who was apprehended by Batman. He is later killed under unspecified circumstances with a chess piece in his hands; it would then be discovered that Joker was responsible.^[114] Toad returned in the series "The New Golden Age".^[115]

Mister Who is the name of several characters appearing in American comic books published by DC Comics.

Mokkari is a New God of Apokolips who became a partner of the DNAlienSimyan. The two run Apokolips' Evil Factory, a rival of Project Cadmus.^[123]

In 2011, "The New 52" rebooted the DC universe. Mokkari is depicted as the half-brother of Simyan.^[124] He infiltrates Project Cadmus on DeSaad's behalf to obtain the technology there, which originated from New Genesis.^[125]

Molecule is character appearing in American comic books published by DC Comics. The character, created by Geoff Johns and Carlos Ferreira, first appeared in Teen Titans (vol. 3) #38 (September 2006).

Molecule is a teen superhero patterned after the Atom and a member of the Teen Titans during the "one-year gap" between the series Infinite Crisis and the "One Year Later" storyline. He is one of a group of teen heroes attacked by the Terror Titans and put in the arena of the Dark Side Club. While trying to escape, he is killed by the Persuader.^[126]

Monarch of Menace is an enemy of Batman with a royalty theme. He was the first villain to beat Batman, and later retired after acquiring enough cash. The Monarch also has a son who was humiliated by the Monarch and his henchmen, driving the son to become the new Monarch and recreate his father's crimes, eventually being defeated by Batman and Robin.^[127]

Mongal is the sister of Mongul II (who is the son of Mongul I), introduced by her brother to Superman in Superman (vol. 2) #170. When Krypto the Superdog nearly killed Mongul II, Mongal escaped and reappeared to destroy New York City. After Maxima is killed in the Our Worlds at War miniseries, Mongal takes over her homeworld of Almerac before being killed by Mongul.^[128] Mongal was resurrected following The New 52 and DC Rebirth relaunches.^[129]

Monk (also called Mad Monk) first appeared in Detective Comics #31 (September 1939) and was created by Gardner Fox, Bob Kane, and Sheldon Moldoff. He is among the earliest villains faced by Batman. Monk is depicted as a vampire who wears a red, monk-like outfit with a hood that bears a skull and crossbones. Later depictions establish that Batman believes that the Monk only pretends to be a vampire. However, Monk possesses genuine supernatural powers, allowing him to hypnotize others and transform into a wolf.^[133]

The Monk returned several decades later, when writer Gerry Conway revived him in 1982's Detective Comics #515. This version of the character is a post-Civil War plantation owner in New Orleans named Louis DuBois. He and his sister Dala are attacked by their vengeful ex-slaves and subjected to a voodoo ritual which transforms them into undead beings.^[134]

Monkey Prince is a clone of the Monkey King who was separated from his progenitor during a conflict with Darkseid and gestated inside a rock.^[135] Centuries later, Ultra-Humanite opens a portal to the Phantom Zone. The clone is transported to Earth, where Ultra-Humanite's daughter Laura Shugel and her lover Winston Shen adopt him and name him Marcus.^[136]

Marcus grows up in a loving household while remaining oblivious to his origin and his parents' criminal backgrounds. During Marcus' childhood, when his family lives in Gotham City, Batman breaks into their home during a thunderstorm to interrogate Winston and Laura, but flees after seeing Marcus. The experience leaves Marcus with a fear of bats, storms and water and a hatred for superheroes, which periodically cause him to suffer from panic attacks.^[137]

When Marcus is fifteen, the Shugel-Shens move back to Gotham due to his parents' work. After Marcus is tormented by several bullies at his high school, the school janitor Mr. Zhu encourages him to face his fears, prompting him to jump into the school swimming pool. Marcus is transported to Flower Fruit Mountain, where Zhu tells him that his true father is the Monkey King and reveals himself to be Pigsy, his father's comrade. Appointing himself as Marcus' shifu, Pigsy warns Marcus of an upcoming threat to Earth and places a circlet on his head, transforming him into the Monkey Prince.^[138]

The Monkey Prince becomes overconfident with his powers and initially uses them for selfish reasons, such as getting revenge on his bullies. His inexperience and fear interferes with his ability to maintain his transformation, forcing Marcus to accept Pigsy as his shifu and come to terms with his birthright.^[139] Under Pigsy's tutelage, the Monkey Prince overcomes his fears to awaken and control his abilities while discovering more about his father's history.^[140]

Monocle (Jonathan Cheval) is an honest businessman in the field of optics, who lost his business to a criminal's schemes. Determined to get revenge on the people that cheated him, Cheval invents a number of monocles that can emit beams of energy.^[141] He is eventually captured by Hawkman after killing two of the criminals, although the remaining one is jailed with him.

Decades later, after being released from prison, he is invited by the Ultra-Humanite to join his Secret Society of Super Villains which battles Hawkman along with the rest of the Justice Society of America and the Justice League of America.^[142] He and his colleagues are defeated and banished into an inter-dimensional limbo until the Ultra-Humanite from 1942 contacts his future counterpart, enlisting the aid of all criminals then present in limbo. Monocle briefly resides once more in 1942 until he and his allies are defeated once again, this time at the hands of the All-Star Squadron.

Monocle appears with Merlyn and other various villains and ex-Suicide Squad members in the mini-series Identity Crisis (2004). He was killed by Manhunter (Kate Spencer) in Manhunter #9 (2005).

In 2011, "The New 52" rebooted the DC universe. During the "Forever Evil" storyline, Monocle is among the villains assembled by the Crime Syndicate of America. When he assumes that the Crime Syndicate of America is actually the Justice League in disguise, Monocle is killed by Ultraman.^[143]

Monster (Jason Rogers) is a character created by Gardner Fox, first appearing in All-Star Comics #20 (March 1944). He is an enemy of the Justice Society of America.^[144][145]

Monstress (Candi Pyponte-Le Parc III) is a character appearing in American comic books published by DC Comics. Created by Tom Peyer, Tom McCraw, and Lee Moder, she first appeared in Legion of Super-Heroes (vol. 4) #82 (July 1996).

Candi is a native of the planet Xanthu who was mutated by a gene bomb and gained superhuman strength after being caught in the accidental detonation of a gene bomb her father created. Shunned by her father and the working class, who viewed her as an enemy, Candi joined the Uncanny Amazers while looking for a place to belong.^[146] Candi originally possesses bright green skin, which Element Lad changes to orange as a prank. However, she accepts her new skin color despite Element Lad being able and willing to change it back.^[147] During the Legion Lost storyline, Monstress is killed by Element Lad, who has gone insane and become the villain Progenitor after being lost in space.^[148]

Juan Montez is a former professional boxer who went by the nickname "Mauler" and is a former sparring partner of Ted Grant. With Maria Montez, he became the father of Yolanda Montez. When Grant was thought to be lost in Limbo, Nuklon gave his champion belt to Juan to remember him by.^[149]

Maria Montez is the wife of Juan Montez and an old friend of Ted Grant. When Maria and her unnamed sister were pregnant, they were experimented upon by the evil Doctor Love. The side effects of the experiments were behind Yolanda Montez's abilities and she supported her daughter's campaign as the second Wildcat.^[150]

After Yolanda was killed by Eclipso, Maria brought her body to a witch who was able to bring Yolanda back to life. However, this was exposed as a scam by the original Wildcat.^[151]

Moonbow (Brittany Brandon) was created by Gerry Conway and Joe Brozowski, and first appeared in Firestorm (vol. 2) #48 (June 1986).

Moonbow is introduced as a moon-themed criminal who wields a steel longbow. She attacks two rival gangs, drawing the attention of the police and Firestorm (Ronnie Raymond). When Firestorm confronts Moonbow, he inadvertently allows her to escape. In their next encounter, Firestorm allows Moonbow to escape again, describing her as a misguided Robin Hood-esque vigilante. Moonbow is revealed to be Brittany Brandon, Ronnie's classmate.^[152]

In Doomsday Clock, Moonbow appears as an operative of the Department of Metahuman Affairs.^[153]

Sophie Moore was a cadet captain at West Point, where she held the rank of S-3, or Operations Officer. She was also the roommate and girlfriend of Kate Kane, who was herself the Brigade Executive Officer, one rank above Sophie. The two boxed competitively at the academy, with a strong implication that Kate beat Sophie in an academy championship match before their senior year.^[154] When Kate resigned from the academy due to DADT allegations, she did not rat out Sophie.^[155]

In 2011, "The New 52" rebooted the DC universe. Sophie's history with Kate remains intact. After graduating from West Point, Sophie eventually made the rank of colonel and accepted a teaching position at Gotham Military Academy. She later reunites with Kate by chance at a charity carnival, where she learns that Kate is engaged to Maggie Sawyer. She attempts to schedule a friendly dinner with Kate, to no avail.^[156]

Jared Morillo is a detective who works for the Keystone City Police Department.^[158]

Mortalla is the wife of DeSaad and member of Darkseid's Elite. With one hand, Mortalla can induce sleep. With another hand, Mortalla can induce death.^[159]

Mother Mayhem is the name of three characters appearing in American comic books published by DC Comics.

Mudslide is an unnamed man and a member of the Masters of Disaster who possesses geokinesis, which allow him to liquefy rocks with a touch.^[167]

Sojourner "Jo" Mullein was raised a child of divorce in New York City. After witnessing the 9/11 attacks, Jo was inspired to make a difference in the world. She graduated valedictorian in her high school and joining the United States Army, and later the New York City Police Department. During her police career, she witnessed her partner beat a suspect nearly to death. Before being able to turn him in, Jo was suddenly fired after being tagged in a Black Lives MatterFacebook post. After being fired, Jo was approached by a Guardian of the Universe, who issued her a Power ring and a challenge: "One year to make a difference."^[168]

Following Infinite Frontier, Mullein began appearing in mainstream Green Lantern comics, becoming a main Green Lantern alongside Hal Jordan, John Stewart, etc.

Multiplex (Danton Black) is a nuclear physicist who was Martin Stein's assistant in the designing of the Hudson Nuclear Facility. Feeling that he is not receiving his due credit, he begins stealing lab equipment. After being caught by Stein and fired, Black publicly accuses him of stealing his designs for the power plant. Stein, fearing that delays would cause the public to believe the reactors unsafe, decides to bring the reactors online. Simultaneously, Black breaks into the facility to steal blueprints he could use to fabricate evidence supporting his accusations against Stein. A bomb placed in the facility by a protest group explodes, transforming Stein and student Ronnie Raymond into Firestorm and giving Black the ability to clone himself.^{[169][170][171]}

Multiplex originally works as an operative of the 2000 Committee under the command of Henry Hewitt. He later appears as a member of the Suicide Squad and the Secret Society of Super Villains.^[172][173]

Murmur (Michael Amar) is a once respected surgeon, succumbed to madness and started a killing spree to stop the voices inside his head. This spree went through Central and Keystone City and caught the eye of police officers Fred Chyre and Joe Jackam. They later tracked Amar down with the help from Central City forensic scientist, Barry Allen. Part of Amar's psychosis is the inability to stop himself from blurting out his crimes. Because of these outbursts, he is quickly convicted and sentenced to death.^[175]

It is soon discovered that Amar's blood is so abnormal that lethal injection can not kill him. While incarcerated in Iron Heights prison, Amar cuts out his own tongue and sews his mouth shut so he will no longer be able to incriminate himself. Wearing a thin mask of his own design, Amar becomes known as Murmur. While in prison, Murmur creates a virus that kills the guards and prisoners and escapes during the riots it causes. He then joins Blacksmith, who helps him with creating the virus, and her rogues. Afterwards, Murmur strikes out on his own.

Dexter Myles is a former actor and the curator of the Flash Museum.

Mysto the Magician Detective is a character in the DC Universe. He first appeared in Detective Comics #203 (January 1954). Mysto was a regular back-up feature in Detective Comics #203–212 (October 1954). He was dropped when Detective Comics went from 44 pages to 36.^[176] Mysto's only Modern Age appearance was in Detective Comics #500 (March 1981), in a special anniversary team-up story featuring Slam Bradley, Roy Raymond, and many other detectives that had once appeared in previous issues.^[177][178]

Rick Carter is a Wildcat flier piloting a small single-engine plane over the Tibetan plains when he spots three bandits chasing a lone old man. In gratitude for Carter saving the old man's life, Carter is taught ancient mysticism as well as tricks of the marketplace. Carter and his manservant Sikhi return to the United States to fight crime, using his skills as a stage magician.