List of DC Comics characters: M

M

 * M1 (Warner Bros. Animation (DCAU))
 * M2 (Warner Bros. Animation (DCAU))
 * M3 (Warner Bros. Animation (DCAU))
 * M.C. Curtis
 * 'Mazing Man
 * M'dahna (Green Lantern of Space Sector 2751)
 * M'hdahna (Green Lantern (space sector unknown))
 * M'nagalah (also known as M'nagala)
 * Ma Hunkel (also known as Red Tornado (I) and Abigail Hunkel)
 * Ma Mayhem (Warner Bros. Animation (DCAU))
 * Ma Murder (Warner Bros. Animation)
 * Ma Parker (20th Century-Fox Television)
 * Ma'alefa'ak (also known as Malefic and Ma'alefa'ak J'onzz)
 * Maal Rhu
 * Maaldor the Darklord
 * Maas, E. Leopold
 * Maash (also known as Sinestro Corspman of Space Sector 863)
 * Mabel Dawson
 * Mabuse
 * Mac McClellan
 * Mac Nelson
 * Macbeth, Lady
 * MacDannon, David
 * MacDonald, Old (20th Century-Fox Television)
 * Mace (Marisol Samuels)
 * Mace (Colt Howards) (Hasbro)
 * Mace Greede
 * MacGruder, Colonel
 * MacGuire, Patrick (also known as Scrapper)
 * Machiavelli
 * Machine (WildStorm)
 * Machine Gun Eddie (also known as Ed D. Edd) (Tribune Media Services)
 * Machine Messiah
 * Machinist (also known as Dino Manolis) (WildStorm)
 * Machiste
 * Mack, Joe
 * Mackay, Conrad
 * Mackay, Gunner
 * Mackenzie Bock (also known as Hardback Bock)
 * MacLean, Douglas
 * Macro-man
 * Mad Bomber (also known as Ted Dymer) (Warner Bros. Animation (DCAU))
 * Mad Dog
 * Mad Dog (Warner Bros. Animation (DCAU))
 * Mad Dog Duggin (WildStorm)
 * Mad Dog Markham
 * Mad Dog McSweeney (also known as Mike McSweeney) (Warner Bros. Animation (DCAU))
 * Mad Dog Ted (Warner Bros. Animation (DCAU))
 * Mad Harriet
 * Mad Hatter (a.k.a. Jervis Tetch)
 * Mad Hettie (also known as Henrietta Hubble) (Vertigo)
 * Mad Maestro (Harry Fowler)
 * Mad Mod
 * Mad Mod Witch
 * Mad Stan (also known as Stanley Labowski) (Warner Bros. Animation (DCAU))
 * Madame .44 (also known as Jeanne Walker and Jeanne Walker Tane)
 * Madame Benita
 * Madame Libertine (also known as Katrina Krieger)
 * Madame Olga
 * Madame Rouge (also known as Laura DeMille and Gabrielle Soullet (an alias))
 * Madame Sapphire (Amalgam Comics)
 * Madame Xanadu
 * Madame Zodiac
 * Madd, Ishido
 * Maddow
 * Maddy (Earth-19) (DC Elseworlds)
 * Made of Wood Killer (also known as Samuel Sullivan)
 * Made of Wood Killer (also known as Francis Sullivan)
 * Mademoiselle Marie
 * Madge
 * Madge Devere
 * MadGod Sector 3600
 * Madison, Julie
 * Madman Jordan (also known as Hal Jordan) (Amalgam Comics)
 * Madman Markham
 * Madmen (alias Fleeter and unrevealed)
 * Madoc, Richard (Vertigo)
 * Madonna, Franco
 * Madrid, Anwar (Vertigo)
 * Madrid, Rose (Vertigo)
 * Maduvu
 * Maffeo Polo
 * Magaan Van'n Intraktus
 * Magala
 * Magan, Bart (also known as Doctor No-Face)
 * Magda
 * Mageddon
 * Magenta
 * Maggie Maldrone
 * Maggie Paige (Warner Bros. Animation) (DCAU)
 * Maggie Sawyer (also known as Margaret Sawyer)
 * Maggin, Elliott S!
 * Maggit
 * Magician
 * Magicko
 * Magill, Doctor
 * Magma (also known as Mike Morgan) (Warner Bros. Animation (DCAU))
 * Magnar
 * Magnetic Kid (also known as Magnetic Lad)
 * Magneto
 * Magneto (also known as Erik Magnus) (Amalgam Comics)
 * Magnificus Sivana (Fawcett Comics)
 * Magno
 * Magno (Golden Age)
 * Magno Lad (also known as Kort Grezz)
 * Magnus, David (also known as Veridium (II))
 * Magnus, King
 * Magnus, Mike (also known as Gold)
 * Magnus, Sharon (also known as Platinum (I), Platina and Tina Platt)
 * Magnus, Troy
 * Magnus, Will (also known as Veridium (I))
 * Magnus, Will (Amalgam Comics)
 * Magog (DC Elseworlds)
 * Magpie
 * [Maguire, Susan (also known as Susan Wayne) (Warner Bros. Animation (DCAU))
 * Magus, Simon
 * Mahadevi
 * Mahayogi
 * Mahduse
 * Mahet (Vertigo)
 * Mahkent, Joar (also known as Icicle)
 * Mahmood Khan
 * Mahol Toj
 * Mahoney, John
 * Mai-Ling
 * Mainframe (also known as Tina Cassidy) (Hasbro)
 * Mainline
 * Maisie Day
 * Maitresse
 * Major Bigsbe
 * Major Burton
 * Major Disaster (also known as Paul Booker)
 * Major Domo
 * Major Force
 * Major Matthews
 * Major Mayhem
 * Major Patting
 * Major Smej
 * Major Victory
 * Major Williams
 * Major Zastrow
 * Makeba (Warner Bros. Animation (DCAU))
 * Makoa, Sam
 * Makoa, Sam (Amalgam Comics)
 * Mal Duncan (also known as Guardian (II), Hornblower, Herald and Vox (II))
 * Mala (see also Amazons)
 * Mala (see also Kryptonians)
 * Malador
 * Malagigi
 * Malan
 * Malchior (Warner Bros. Animation)
 * Malcom King (also known as Bellerophon and Strafe) (WildStorm)
 * Malcolm Maxwell
 * Malcolm Monroe
 * Malcolm, Professor (Amalgam Comics)
 * Malefic (also known as Ma'alefa'ak J'onzz)
 * Malet Dasim (also known as Green Lantern of Space Sector 103)
 * Malice Vundabar
 * Malignon (also known as Doctor Ub'x, Polestar and Truk)
 * Mallard Fillmore
 * Malleable Man (also known as Skizzle Shanks)
 * Mallo
 * Mallor, Grev (also known as Shadow Kid)
 * Mallor, Lyrissa
 * Mallor, Tasmia (also known as Shadow Lass and Tasmia Malor)
 * Mallory Moxon
 * Mallow
 * Malo
 * Malochia
 * Maloney, District Attorney (also known as Special Prosecutor Maloney)
 * Malverne, Dick (also known as Richard Malverne and Dick Wilson)
 * Malvin, Dick (also known as X-2-Y)
 * Malvio, General
 * Mammitu
 * Mammon
 * Mammoth
 * Mammoth Miss (also known as Mammoth Mutt (Warner Bros. Animation)
 * Mammoth Mutt
 * Mamoud
 * Man with 100 Heads (Fawcett Comics)
 * Man-at-Arms (Mattel)
 * Man-Bat
 * Manchester Black
 * Mandarinestro (Amalgam Comics)
 * Mandragora, Edgar (Warner Bros. Animation (DCAU))
 * Mandragora, Steven (see Tobias Whale)
 * Manfred Mota
 * Manga Khan
 * Manhattan Guardian (also known as Jake Jordan)
 * Manhunter (I-VIII)
 * Manhunter (IX) (Kate Spencer)
 * Manhunter Lud
 * Mania
 * Manitou Dawn
 * Manitou Raven
 * Mann, Alvin (also known as Wanda)
 * Mann, Rutledge (Condé Nast Publications)
 * Mannheim, Bruno (also known as Ugly)
 * Manning, Jess
 * Manning, Pol (also an alias of Hal Jordan (Green Lantern))
 * Manning, Toby (also known as Terra-Man)
 * Mano
 * Man-of-Bats
 * Manon, Killer
 * Manotaur (DC Elseworlds)
 * Manson
 * Manthrax
 * Manticore
 * Mantis
 * Mantis Morlo
 * Manuel Baeza
 * Manuel Dexterity (Milestone Media)
 * Manuel Sanchez
 * Manuella Dexterity (Milestone Media)
 * Mao, Kevin (also known as Ballistic)
 * Mar Londo
 * Mara Talbot
 * Maraud, Slash
 * Marauder
 * Marauder
 * Marbichi
 * Marc Slayton (also known as Backlash) (WildStorm)
 * Marcel Bertrand (WildStorm)
 * March, Doctor (Warner Bros. Animation (DCAU))
 * Marchetti
 * Marcia Cates (Warner Bros. Animation (DCAU))
 * Marcia Douglas
 * Marcie Cooper (also known as Harlequin)
 * Marco
 * Marco Polo (also a past life of Jimmy Olsen)
 * Marcus Driver
 * Marcus Junius Brutus the Younger (supposedly a past life of Karate Kid)
 * Marcus King (DC Comics/Dark Horse Comics)
 * Marcus Moore (also known as Deadman) (Tangent Comics)
 * Marcus of Rome (also known as Golden Gladiator)
 * Marcus Wise
 * Mardin, Sheriff
 * Mardis, Jean Louis
 * Marello, Frankie
 * Margaret Crabbetson (Fawcett Comics)
 * Margaret Madsen (Warner Bros. Animation (DCAU))
 * Margaret Wilson
 * Margaret Wilson (Warner Bros.)
 * Margie Elong (Tribune Media Services)
 * Margo Lane (Condé Nast Publications)
 * Mari McCabe (also known as Vixen)
 * Maria (also known as Aquamaria (Aqua-Maria)) (Milestone Media)
 * Maria Deneiros
 * Maria Montez
 * Maria Vargas (Warner Bros. Animation (DCAU))
 * Maria Verdugo
 * Mariah
 * Marian Mercer (also known as Pagan)
 * Maricc, Penn
 * Marie Elkins (an alias of Luorno Durgo)
 * Marie Logan
 * Marie Temperal
 * Marie the Psychic Turtle
 * Marigold, April
 * Marij'n Bek
 * Mariko (Warner Bros. Animation (DCAU))
 * Marin, Billy (also known as Anthony "Tony" Zucco) (Warner Bros. Animation (DCAU))
 * Marina (also known as Aquagirl) (Warner Bros. Animation (DCAU))
 * Marine Marauder (I)
 * Marine Marauder (II)
 * Marion Grange
 * Marion Trent
 * Marissa Dillon
 * Marjorie Marshall
 * Mark Angel
 * Mark Compass (also known as Captain Compass)
 * Mark Desmond (also known as Blockbuster)
 * Mark Erdel (also known as Saul Erdel and James Erdel)
 * Mark Kieves
 * Mark Logan
 * Mark Mardon (also known as Weather Wizard)
 * Mark Merkling
 * Mark Merlin (since Prince Ra-Man)
 * Mark Moonrider
 * Mark Nagoya
 * Mark Peiken
 * Mark Peron
 * Mark Ronsom (also known as Ravager)
 * Mark Sharpe
 * Mark Twain (Vertigo)
 * Mark, Glenda
 * Markham
 * Markham, George
 * Markot Five
 * Markov, Brion (also known as Geo-Force)
 * Markov, Gregor
 * Markov, Ilona
 * Markov, King
 * Markov, Tara (also known as Terra)
 * Marksman (Quality Comics)
 * Marla Alexander
 * Marla Harvey
 * Marla Latham
 * Marlena, Queen (Mattel)
 * Marli Zhorg
 * Marlin Brando
 * Marlo, President
 * Marlot Benson (Warner Bros. Animation (DCAU))
 * Marlowe, Christopher ('Vertigo'')
 * Marmaduke Ffogg (also known as Lord Marmaduke Ffogg) (20th Century-Fox Television)
 * Marnie (It's a Bird...It's a Plane...It's Superman)
 * Maroni, Sal "Lucky" (also known as Boss Maroni, Boss Moroni and Boss Morelli)
 * Mars (also known as Ares)
 * Mar-San
 * Marsh, Doctor (Quality Comics)
 * Marsha, Queen of Diamonds (20th Century-Fox Television)
 * Marshall
 * Marshall
 * Marshall, Ben
 * Marshall, Buck
 * Mars-Ol
 * Marsten, Ellie (Vertigo)
 * Marston, Chuck
 * Mart Black
 * Marta (also known as Brickhouse) (Milestone Media)
 * Marte Allon
 * Martha Hopkins
 * Martha Jennings
 * Martha Kent
 * Martha Roberts (also known as Doll Girl) (Quality Comics)
 * Martha Running Deer
 * Martha Travers
 * Martha Wayne
 * Martha Wayne (Earth-5)
 * Martian Anteater
 * Martian Manhunter (also known as J'onn J'onzz and Manhunter from Mars)
 * Martin
 * Martin Berger (also known as Brickhouse) (Milestone Media)
 * Martin Champion (Atari, Inc)
 * Martin Luther King, Junior
 * Martin Mayne
 * Martin Stein (also known as Firestorm)
 * Martin Tellman
 * Martin Tenbones
 * Martin Thorpe
 * Martin, Albert
 * Martin, Dean
 * Martin, Edgar
 * Martin, Hannibal
 * Martin, Jesse
 * Martin, Jimmy
 * Martin, Joey "the Snail" (Warner Bros. Animation (DCAU))
 * Martin, Joseph (also known as Atomic Skull)
 * Martin, Lorna
 * Martino Fenton
 * [Marty Kaye
 * Marty Lerner
 * Marty Miller
 * Marty Scavone
 * Marva Cooper (Warner Bros. Animation (DCAU))
 * Marvel Bunny, Junior
 * Marvel Maid
 * Marvel Man
 * Marvin
 * Marvin Fargo
 * Marvin Stegler (Vertigo)
 * Marwell, Warden
 * Mary Cassidy (also known as Mary)
 * Mary Dahl (also known as Baby-Doll) (Warner Bros. Animation (DCAU))
 * Mary Grayson
 * Mary Hunter (Vertigo)
 * Mary Jane Watson (also known as Insect Queen) (Amalgam Comics)
 * Mary Kent
 * Mary Marvel (Fawcett Comics)
 * Mary Marvel Girl (also known as Dial H.U.S.K., Polaris, Wonder Girl and Artemisty Knight) (Amalgam Comics)
 * Mary McGinnis (Warner Bros. Animation (DCAU))
 * Mary McSweeney (Warner Bros. Animation (DCAU))
 * Mary Michaels (also known as Freon) (Warner Bros. Animation (DCAU))
 * Mary Palmer (also known as Susan Palmer)
 * Mary Powers
 * Mary Pratt (also known as Mary James)
 * Mary Rogers
 * Mary West
 * Marz, Dan
 * Más (Warner Bros. Animation)
 * Maser (also known as Air Wave and Harold "Hal" Jordan)
 * Mask
 * Mask (Fawcett Comics)
 * Mask Man (also known as Mxyzptlk V)
 * Masked Bone
 * Mason Forrest (Warner Bros. Animation (DCAU))
 * Mason O'Dare
 * Mason Trollbridge (also known as Clipper)
 * Mason, Amanda (also known as Ransak II) (DC Elseworlds)
 * Mason, Courtney (also known as Anima)
 * Mason, Dick]]]]
 * Mason, Gil (Warner Bros. Animation (DCAU))
 * Mason, Herb
 * Mason, Lydia
 * Mason, Phil (also known as Ice Cream Soldier)
 * Mason, Police Commissioner]]
 * Mason, Terry
 * Mason, Willy
 * Masquerade (Milestone Media)
 * Masrin, Diol
 * Massacre
 * Master
 * Master (also known as Pulse 8 and John Wether)
 * Master (also known as Alexandre LeRoi) (Earth-19) (DC Elseworlds)
 * Master Adept
 * Master Assassin (also known as Devon) (Warner Bros. Animation (DCAU))
 * Master Blaster
 * Master Builder (also known as John Stewart and Green Lantern)
 * Master Hand
 * Master Jailer
 * Master Komak
 * Master Man (Fawcett Comics)
 * Master Man (Quality Comics)
 * Master Mayhem
 * Master Mind
 * Mastermind (Filmation)
 * Master of Games (Warner Bros. Animation)
 * Master of the Thieves' World
 * Master Robot
 * Masterman (also known as Perry White)
 * Masters, Bob
 * Masters, Digby
 * Master-Tek
 * Mata Hari
 * Match
 * Matches Malone (an alias of Batman)
 * Mathilda Idis (Warner Bros. Animation (DCAU))
 * Matilda Perkins
 * Matoo Pree
 * Matrix (I) (also known as Supergirl, Mae and Ms. Nakamura (an alias))
 * Matrix (II) (also known as Sierra)
 * Matson, Butch
 * Matt (WildStorm)
 * Matt Doyle
 * Matt McGinnis (Warner Bros. Animation DCAU))
 * Matt Ringer
 * Matt Saunders
 * Matt Stockton
 * Matter Master (also known as Mark Mandrill)
 * Matter Eater from the Interplanetary Zoo
 * Matter-Eater Lad (also known as Tenzil Kem)
 * Matthew Angel
 * Matthew Cable (also known as Matthew the Raven)
 * Matthew Ryan (also known as Red Ryan)
 * Matthew Ryder (also known as Waverider)
 * Matthew Shrieve
 * Matthew the Raven
 * Matthew Thorne (also known as Crime Doctor)
 * Matthew Thorne (also known as Crime Doctor) (Warner Bros. Animation (DCAU))
 * Matthews, Damon
 * Matthews, Harry
 * Mattheus Senreich (WildStorm)
 * Matvei Rodor (also known as Zuggernaut
 * Maul (WildStorm)
 * Mauler Montez
 * Maureen Wells
 * Mavis
 * Mavis Trent
 * Mavlen, Staq (also known as Fire Lad)
 * Mawu
 * Mawzir
 * Max (Vertigo)
 * Max (Warner Bros. Animation (DCAU))
 * Max Cash (also known as the Man)
 * Max Eckhardt (Warner Bros.)
 * Max Faraday (WildStorm)
 * Max Gibson (also known as Maxine Gibson) (Warner Bros. Animation (DCAU))
 * Max Mencken (It's a Bird...It's a Plane...It's Superman)
 * Max Mercury
 * Max Shreck (Warner Bros.)
 * Maxie Flack
 * Maxie Zeus (also known as Maximillian Zeus)
 * Maxilla Yale
 * Maxima
 * Maxi-Man
 * Maximillien Robespierre (Vertigo)
 * Maximum (also known as Maxwell Williams)
 * Maxine Baker
 * Maxine Hunkel (also known as Cyclone)
 * Maxwell Lord (also known as Black King (I))
 * Maxwell, Charles
 * May (Warner Bros. Animation (''DCAU'))
 * May Bryson
 * May Marigold
 * Maya
 * Maya Royko (also known as Nautika) (WildStorm)
 * Mayall, Charles
 * Mayavale, Doctor
 * Maychek, Tony (also known as Earth Mover) (Warner Bros. Animation (DCAU))
 * Mayfield, Emma
 * Mayfield, Joel
 * Mayflower
 * Mayoor
 * Mayor Garson
 * Mayor Giordano (DC Elseworlds)
 * Mayor Harkness
 * Mayor Hayes
 * Mayor Linseed) (Warner Bros. Animation
 * Mayor Manning (Warner Bros. Animation (DCAU))
 * Mayor Mayhem
 * Mayor Skowcroft
 * Mayor Thorndike
 * Mayor Tolliver (Earth-19) (DC Elseworlds)
 * Mayor Worth
 * Mazda the Great
 * Mazdan
 * Mazikeen
 * Mazone
 * Mazursky, Professor
 * McBlammo, Crash (also known as Biff McBlammo)
 * McBoomBoom, Buttons (Hasbro)
 * McCaffrey
 * McCarthy, Jonah
 * McCarthy, Joseph
 * McCauley, Leland
 * McCay, Norman (DC Elseworlds)
 * McClane, Foster (also known as Flashpoint) (WildStorm)
 * McClean, Doctor (Warner Bros.)
 * McCoy, Amanda
 * McCoy, Touch
 * McCree, Ginny (also known as Torcher)
 * McDonald, Frank
 * McDonald, Josephine (also known as Josie Mac)
 * McDonald, Lenora
 * McDougal, Siobhan (also known as Silver Banshee)
 * McElroy, William (also known as King Tut) (20th Century-Fox Television)
 * McFooey
 * McGee, Jerry (also known as Speed Demon)
 * McGee, Tina
 * McGinnis, Terry (also known as Batman) (Warner Bros. Animation (DCAU))
 * McGinnis, Warren (Warner Bros. Animation DCAU))
 * McGuire, Paul
 * McIntyre
 * McKenna, Gerome (also known as Nuklon and Herakles)
 * McNamara, Hazel (Vertigo)
 * McManus, Hips (Warner Bros. Animation (DCAU))
 * McNider, Charles (also known as Doctor Mid-Nite)
 * McWhirter (Warner Bros. Animation (DCAU))
 * Meach, Joseph "Joe" (also known as Composite Superman)
 * Mead, General
 * Mead, George (an alias of Nemesis)
 * Meade, Diane
 * Meadlux
 * Meadows, Susan
 * Meanstreak
 * Mechan Monster
 * Mechano-Man
 * Mech-Cannibal (also known as B.O.L.T.S.)
 * Medici, Augustus (Vertigo)
 * Medici, Benito (''Vertigo')
 * Medini
 * Medphyll (also known as Green Lantern of Space Sector 586)
 * Medula (Hanna-Barbera)
 * Medusa
 * Medusa (also known as Doctor Medusa, Myrra Rhodes and Myrna Rhodes)
 * Medusa (Hostess)
 * Meek
 * Meekins, Jaspar
 * Meeks, Wild Eddie
 * Meeno Monak
 * Meg Tempest
 * Megafire
 * Megala, Heinrich
 * Megan (WildStorm)
 * Megan Dietrich (Vertigo)
 * Megan Lockhart (also known as Prank) (Warner Bros. Television)
 * Mega-Biter
 * Megistus
 * Meglaro
 * Mehmet Ali-Pasha
 * Mei-Lei Kent-Wayne (also known as Mei-Lai) (DC Elseworlds)
 * Mei-Mei
 * Mekanique
 * Mekros
 * Mekt Ranzz (also known as Lightning Lord)
 * Mel Lambert (also known as Ted Lambert and Young Lambert)
 * Mel Twopersons (also known as Maxi Vanilli)
 * Melanie Walker (also known as Ten (III)) (Warner Bros. Animation (DCAU))
 * Melanippus
 * Meleos (Vertigo)
 * Melia
 * Melissa Brunt
 * Melmoth (also known as Mordredd)
 * Meloni Thawne
 * Memoria, Echo (Vertigo)
 * Menagerie (I) (also known as Beast Boy (DC Elseworlds))
 * Menagerie
 * Menalippe
 * Mendez (Warner Bros. Animation (DCAU))
 * Mendez, Julio (Warner Bros. Television)
 * Mendez, Rosabelle (also known as Pantha and X-24)
 * Mendoza, Liam (see Paris) (WildStorm)
 * Menos (Warner Bros. Animation)
 * Mental-Man
 * Mental Man (an alias of Aquaman and Arthur Curry)
 * Mento
 * Mentor (Filmation)
 * Mephisto (Amalgam Comics)
 * Mephisto (Filmation)
 * Mephisto Saturno
 * Mera
 * Merayn Dethalis (also known as Darkstar of Bavacqua Seven)
 * Mercer, Tess (Warner Bros. Television)
 * Mercenary Man, (see Buck Wild, Mercenary Man; Milestone Media)
 * Mercury
 * Mercury (also known as Redmond Wilde)
 * Mercury (Fawcett Comics)
 * Mercury Girl
 * Mercy Graves
 * Meridian
 * Meridian, Chase (Warner Bros.)
 * Merkel, Alex (also known as Junior (II))
 * Merkel, Officer (also known as Stan Merkel)
 * Merkin
 * Merlin (also known as Myrddin)
 * Merlin (Amalgam Comics)
 * Merlin the Magician (Quality Comics)
 * Merlo, Officer
 * Merlot Bourdeaux
 * Merlyn
 * Merman
 * Merna Newton
 * Merrill, Davey
 * Merry Pemberton (also known as Merry, Girl of a 1000 Gimmicks)
 * Merryman (of Inferior Five)
 * Mervyn Pumpkinhead
 * Mess (also known as Meyer Qayd)
 * Meta Ulnoor (also known as Esper Lass)
 * Metal Warrior
 * Metal-Eater Beast
 * Metalhead
 * Metallo (also known as John Corben)
 * Metallo (also known as Roger Corben)
 * Metalo (also known as George Grant)
 * Metamorpho (I) (also known as Rex Mason) & (II)
 * Meta-Predator
 * Methacrylate
 * Metron
 * Metropolis Monster
 * Metropolitan (also known as Abraham "Bram" Dusk) (WildStorm)
 * Meyerson, Charlie
 * Mia Doran
 * Mia Simone (Vertigo)
 * Michael Adams (see Ogre)
 * Michael Akins
 * Michael Andrews (also known as King Andrews)
 * Michael Barnes
 * Michael Daniel
 * Michael Demiurgos
 * Michael Francis Murphy (Warner Bros. Television)
 * Michael J. Coram
 * Michael Jon Carter (also known as Booster Gold)
 * Michael Shands
 * Michael Sommers (also known as Alpha)
 * Michael Stromwell (Warner Bros. Animation (DCAU))
 * Michael Underwood
 * Michael Varkova
 * Michael Wuertz (Warner Bros.)
 * Michaels, Albert (also known as Atomic Skull)
 * Michaels, Eldon (Warner Bros. Animation (DCAU))
 * Michelle Twopersons (also known as Shelly Twopersons)
 * Mick Leroy
 * Mick Rory (also known as Heat Wave)
 * Mickey Rinaldi (WildStorm)
 * Micro Lad (also known as Lalo Muldroon)
 * Micron (Warner Bros. Animation (DCAU))
 * Microwave Man (also known as Lewis Padgett)
 * Microwavebelle
 * Middleman, Shirley
 * Middy
 * Midge
 * Midge Hanlon
 * Midnight
 * Midnight Rider
 * Midnight, Jessica
 * Midnighter (also known as Lucas Trent) (WildStorm)
 * Midvale High School Principal
 * Migdalia Viella
 * Mighty Adam (an alias of Black Adam)
 * Mighty Bruce
 * Mighty Gorilla
 * Mighty Maid (an alias of Supergirl (Kara Zor-El))
 * Mighty Mary
 * Mighty Mom (also known as Lisa Lorraine) (Warner Bros. Animation (DCAU))
 * Miguel Diaz (Warner Bros. Animation (DCAU))
 * Miguel Medina (also known as Oro) (Milestone Media)
 * Miguel Miranda
 * Mikado
 * Mike
 * Mike Caputo
 * Mike Donovan
 * Mike Engel (Warner Bros.)
 * Mike Foss
 * Mike "Machine" Gunn
 * Mike Moran
 * Mike Reed
 * Mike Rogers
 * Mike Smith
 * Mike Tempest (also known as Tiger Force)
 * Mike Underwood
 * Mikey (Vertigo)
 * Mildred
 * Mildred Heiny
 * Mildred Krantz
 * Mildred Thunder
 * Chief Miles O'Hara (20th Century-Fox Television)
 * Miles, Johnny
 * Miles, Warden
 * Militia (also known as Mace Gardner)
 * Miller, F.P.
 * Miller, Irene
 * Miller, Lynx
 * Miller, Sean (Warner Bros. Animation (DCAU))
 * Millicent Carson
 * Millie Cole
 * Million-Dollar Marvin
 * Milne, Claire
 * Milo Garret (also known as Bastard) (Vertigo)
 * Milo, Professor (also known as Achilles Milo)
 * Milohai,Kāne
 * Milton Fine (also an alias of Brainiac)
 * Milton Rush
 * Milton Walchanski
 * Milton, General (Fawcett Comics)
 * Milton, John
 * Mime (also known as Camilla Ortin)
 * Mimo Pallidino (Vertigo)
 * Min (Warner Bros. Animation (DCAU))
 * Mind Games
 * Mindancer
 * Mindboggler (also known as Ifrit and Leah Wasserman)
 * Mindgame
 * Mind-Grabber Kid
 * Mindy Church (Warner Bros. Television)
 * Minerva (Fawcett Comics)
 * Minerva (20th Century-Fox Television)
 * Minerva Kent
 * Ming Foo Ling (It's a Bird...It's a Plane...It's Superman)
 * Minion
 * Minister Blizzard
 * Minister F'ancha
 * Minister Illus
 * Minkis
 * Minnie Bannister (Warner Bros.)
 * Minokh
 * Minotaur
 * Minstrel (20th Century-Fox Television)
 * Minstrel Maverick
 * Minute-Man (also known as Jack Weston) (Fawcett Comics)
 * Mirabai
 * Mirage
 * Miranda Kane (Warner Bros. Animation (DCAU))
 * Miranda Tate (an alias of Talia al Ghul) ("Warner Bros.")
 * Miranda Walker
 * Mirl
 * Miro, King (also known as King Randor) (Mattel)
 * Mirror Master (I) & (III)
 * Mirror Monster
 * Mirror Man
 * Misa
 * Misawa, Toshiro (also known as Fuji) (WildStorm)
 * Mischa Pushkin
 * Misfit
 * Misran
 * Miss America (Quality Comics)
 * Miss Arrowette
 * Miss Bacon (20th Century-Fox Television)
 * Miss Bigelow
 * Miss Bloss
 * Miss Fear
 * Miss Iceland (20th-Century Fox)
 * Miss Kusanagi (also known as Hammersuit Zero-X)
 * Miss Liberty (also known as Bess Lynn)
 * Miss Martel (Warner Bros. Animation (DCAU))
 * Miss Martian (also known as M'gann M'orzz and Megan Morse)
 * Miss Mentor
 * Miss Mesmer
 * Miss Millie
 * Miss Miracle (Amalgam Comics)
 * Miss Morphine (also known as Vera Black and Sister Superior)
 * Miss Peggs (an alias of Catwoman)
 * Miss Solstice (Warner Bros. Animation (DCAU))
 * Miss Terious (an alias of Dream Girl)
 * Miss Terrific
 * Miss Tiller (Quality Comics)
 * Miss Winston (Warner Bros. Animation (DCAU))
 * Miss X (also known as Margaret "Peggy" Maloney and Janice Maloney)
 * Mission, Richard
 * Missus Cobblepot (Warner Bros.)
 * Missus Drake (Warner Bros. Animation (DCAU))
 * Missus Elong (Tribune Media Services)
 * Missus Gradenko
 * Missus Jenkins (Tribune Media Services)
 * Missus Manface (Warner Bros. Animation)
 * Missus Trueheart (Tribune Media Services)
 * Mist (also known as Kyle and Jonathan Smythe)
 * Mist (also known as Nash)
 * Mist Master (also known as Yer Sti-Tuan)
 * Mister 103 (also known as Mister 104)
 * Mister Atom
 * Mister Bones
 * Mister Branch (Vertigo)
 * Mister Camera
 * Mister Close
 * Mister Cobblepot (Warner Bros.)
 * Mister E (also known as Eremite)
 * Mister Element (I) & (II) (Mister Element (I) aka Doctor Alchemy)
 * Mister ESPer (also known as Brain wash and Captain Calamity)
 * Mister Farrell (also known as Pharamond) (Vertigo)
 * Mister Fixx (Warner Bros. Animation (''DCAU'))
 * Mister Freeze (also known as Victor Fries and Mister Xero)
 * Mister Fuldecker
 * Mister Fullerton
 * Mister Fun
 * Mister Futile
 * Mister I.Q. (also known as I.Q. and Ira Quimby)
 * Mister Incognito
 * Mister Justice (MLJ Comics)
 * Mister Keeper (Quality Comics)
 * Mister Kltpzyxm
 * Mister Laff
 * Mister Magic
 * Mister Majestic (WildStorm)
 * Mister Marlies
 * Mister Memory
 * Mister Mind (also known as Mister Wonderful) (Fawcett Comics)
 * Mister Miracle (also known as Thaddeus Brown)
 * Mister Miracle (also known as Scott Free)
 * Mister Miracle (also known as Shilo Norman)
 * Mister Moth
 * Mister Muscle (also known as Sturgis Butterfield, Flex, Mister Mighty and Brother Bicep)
 * Mister Mxyzptlk
 * Mister Mxyztplk (Earth-2)
 * Mister Nebula
 * Mister Nitro
 * Mister Nobody
 * Mister Poseidon
 * Mister Robbins (also known as Puck and Robin Goodfellow)
 * Mister Scarlet (I) & (II) (Fawcett Comics)
 * Mister Shepherd (also known as Joseph Shepherd) (Vertigo)
 * Mister Shore (Vertigo)
 * Mister Smyth
 * Mister Socrates (also known as Horatio Socrates and Robert Barton)
 * Mister Solar
 * Mister Tawky Tawny (Fawcett Comics)
 * Mister Terrible
 * Mister Terrific (I) (also known as Terry Sloane)
 * Mister Terrific (II) (also known as Michael Holt and White King (III))
 * Mister Terrific (DC Elseworlds)
 * Mister Toad
 * Mister Twister (also known as Dan Judd)
 * Mister Twister (also known as Bromwell Stikk)
 * Mister Weapon, the Living Arsenal (also known as Sure-Shot)
 * Mister White (WildStorm)
 * Mister Who
 * Mister Wing
 * Mister Woodman (also known as Michael Woodman) (Warner Bros. Television)
 * Mister Wright (also known as Witch)
 * Mister X (also known as Mousey)
 * Mister X (also known as J'onn J'onzz) (Amalgam Comics)
 * Mister Zsasz (also known as Victor Zsasz)
 * Mistress Death (Milestone Media)
 * Mistress Mercy (Milestone Media)
 * Misty Kilgore
 * Mitch Anderson (also known as Outburst)
 * Mitch Cruz
 * Mitch Nole (Warner Bros. Animation (DCAU))
 * Mitch Wacky
 * Mitchell Saunders (also known as Cannon) (WildStorm)
 * Mitchell Yanoff
 * Mitchell, Colin
 * Mitchell, Horace
 * Mixcoatl
 * Mixxo, Doctor
 * Mnemon
 * Mnemosyne
 * Mnemoth
 * Mnenosyne
 * Mo (Warner Bros. Animation (DCAU))
 * Mo (Warner Bros. Animation (DCAU))
 * Mobray, Jake
 * Mocker (Fawcett Comics)
 * Mockingbird (I), (III-IV)
 * Mockridge, Daniel (Warner Bros. Animation (DCAU))
 * Mod Gorilla Boss
 * Modem
 * Moe Malloy
 * Mog Yagor
 * Mogo (also known as Green Lantern of Space Sector 2261)
 * Mogo (also known as Bat-Ape)
 * Mohammed Ibn Bornu
 * Mohandas Singh (Atari, Inc)
 * Mojo, Annie
 * Mokkari
 * Mole
 * Molecular Master
 * Molecule
 * Molly (20th Century-Fox Television)
 * Molly Mayne (also known as Harlequin)
 * Molly O'Reilly (Vertigo)
 * Molly Perkins (WildStorm)
 * Molnur
 * Moloch the Mystic
 * Molock Hanscom (also known as Starfinger)
 * Molock the Merciless
 * Molotov
 * Mom
 * Mom (Milestone Media)
 * Momentus (also known as Asa Ezaak)
 * Momotado
 * Mona Bennet
 * Mona Taylor (also known as Queen of Spades)
 * Monaghan, Tommy (also known as Hitman)
 * Monarch (also known as Hank Hall)
 * Mon-El (also known as Lar Gand, M'Onel and Marvel Lad)
 * Money Master
 * Mongal
 * Mongrel
 * Mon-Grel
 * Mongul (I) & (II)
 * Monitor
 * Monk
 * Monk Hogan (also known as Mister Hogan) (Fawcett Comics)
 * Monk Loomis (also known as Superman (Lawless League))
 * Monkey King (Milestone Media)
 * Monocle
 * Monolith
 * Monroe, Adam
 * Monroe, Heathcliff
 * Monroe, Page (also known as Calendar Girl) (Warner Bros. Animation (DCAU))
 * Monroe, Ruth
 * Monroe, Zita
 * Monsieur Mallah
 * Monsieur Poniard
 * Monsieur Stigmonus
 * Monsoon
 * Monster
 * Monster (also known as Jack Daw) (Vertigo)
 * Monstergirl
 * Monstress
 * Monstrosity (also known as Mordecai Shaw) (WildStorm)
 * Montague Kane (Warner Bros. Animation (DCAU))
 * Montclair, Captain
 * Montel Williams (Vertigo)
 * Montez, Yolanda (II) (also known as Wildcat)
 * Montgomery Kelly
 * Montgomery, Claire (also known as Clare Montgomery)
 * Montoya, Renee (Warner Bros. Animation (DCAU))
 * Mooch
 * Mooglie Ned
 * Moon (Fawcett Comics)
 * Moon Flower
 * Moon Maiden
 * Moon, Jade
 * Moon, Tana
 * Moon, Tana (Amalgam Comics)
 * Moonbow (also known as Brittany "Bree" Brandon)
 * Mooney, Charlene (Vertigo)
 * Moonstone, Lord
 * Moonstruck, Zena
 * Moore, Tim
 * Moose
 * Mopee
 * Mopey
 * Mophir
 * Morax
 * Morbilt, Cindy
 * Mordecai
 * Mordecai Smyt
 * Mordred
 * Mordru
 * Moremi
 * Morgaine Le Fay
 * Morgan (20th Century-Fox Television)
 * Morgan Edge (also known as Morris Edelstein)
 * Morgan Thorgeson
 * Morgan, Adam (also known as Adam Grant)
 * Morgan, Jason, Sr.
 * Morgan, Jason, Jr.
 * Morgan, Jim (It's a Bird...It's a Plane...It's Superman)
 * Morgan, Josh
 * Morgan, Pep
 * Morgan, Shorty
 * Morgan, Thaddeus
 * Morgan, Thomas (WildStorm)
 * Morgan, Travis (also known as Warlord)
 * [Morgan, Willie the Dip
 * Morgansen, Rita
 * Morgna, Dirk (also known as Sun Boy)
 * Mormolykeia
 * Morningstar, Lucifer (also known as Lucifer)
 * Moro, Juan
 * Morozko (also known as Igor Medviedenko)
 * Morphea (Atari, Inc)
 * Morris Burgess Brocklesby (also known as Roderick Burgess)
 * Morris Eagleton (also known as Gargoyle)
 * Morris Middleman
 * Morris Tuttle
 * Morris, Frank
 * Morris, Jan
 * Morris, Ronald
 * Morris, Sterling (Fawcett Comics)
 * Morro
 * Morro, Agent (WildStorm)
 * Morrow, Harvey
 * Morrow, T.O. (also known as Thomas Oscar Morrow)
 * Mort Waxman
 * Mort Weisinger
 * Mortalla
 * Mortician
 * Morticoccus
 * Mortimer Gloom (also known as Weeper)
 * Mortimer Snoop
 * Morton
 * Morton Kirk
 * Morton, Billy
 * Morton, Harold
 * Morton, Keith
 * Morty
 * Morty Rivers
 * Morwatha
 * Moses Karns (also known as Keeper Karns; also an alias of Superman)
 * Most Excellent Superbat (also known as Heino)
 * Mother Mae-Eye (Warner Bros. Animation)
 * Mother Mercy (also known as Matris Ater Clementia)
 * Mother Nature (also known as Nutra)
 * Motherwell, Bill
 * Mothman
 * Mountain-Man Bearde
 * Mourn (I)
 * Mourn (II)
 * Mouse
 * Mouse (Pamela Sweigeld)
 * Mouth
 * Mouthpiece (''Quality Comics')
 * Moxie Mannheim (also known as Boss Moxie)
 * Moximus
 * Moxon, Lew
 * Moxon, Lew (Earth-5)
 * Moxton, Tug
 * Moylan, Winky
 * Moyshe Nakhman (also known as Golem)
 * Mpande
 * Ms. B. Haven (Warner Bros.)
 * Ms. Gsptlsnz
 * Ms. Terrific
 * Mugsy
 * Mugsy Magoon
 * Mugsy Moore
 * Muhammad Ali
 * Muhammad X
 * Mulcahey, Rebecca
 * Mule
 * Mulehead
 * Mulgram, Captain
 * Muller, Ted
 * Mullins, Pug
 * Mullins, Terry
 * Multi-Man
 * Multiple Man
 * Multiplex
 * Mumbo the Magician (Warner Bros. Animation)
 * Mummy (Hostess)
 * Munchukk (also known as Munchuk and Darkstar)
 * Munea Nassur
 * Munin (Vertigo)
 * Munk
 * Munni Jah
 * Munroe, Dave (Amalgam Comics)
 * Munroe, N'Dare (Amalgam Comics)
 * Munroe, Ororo (also known as Wonder Woman and Princess Ororo of Themyscira) (Amalgam Comics)
 * Munroe, Timothy
 * Munsdorf, Baron
 * Munson, Jake
 * Murdoch, Ramsey (also known as Savior)
 * Murkk
 * Murmur
 * Murph
 * Murphy, Commodore
 * Murphy, Patrolman (Tribune Media Services)
 * Murphy, Whitey (Republic Pictures)
 * Murr, the Melting Man (also known as Sinestro Corpsman of Space Sector 3490 and Austin Snow)
 * Murray Boltinoff
 * Murray "the Swede" Schneiderman
 * Murrow, Edward R.
 * Musashi
 * Muscles (Warner Bros. Animation (DCAU))
 * Muscles Moony (an alias of Superman)
 * Muscleman (also known as Blinky Boylan)
 * Muse
 * Museum Curator
 * Mushtaq, Colonel (an alias of Nemesis)
 * Music Maid (Lattora)
 * Music Master (Warner Bros. Animation (DCAU))
 * Music Meister (Warner Bros. Animation)
 * Musketeer (also known as Nightrunner)
 * Mustang Sally
 * Mutant Leader (Earth-31)
 * Mutant Master (also known as Ur)
 * Muto
 * Mutro Botha (Warner Bros. Animation (DCAU))
 * Muur, Wi Kan (also known as Neutrax)
 * Mxyzptlk of the 30th century
 * M'yaa (also known as Buzz)
 * Myand'r
 * Myke Chypurz (also known as Storm Boy)
 * Myke-4 Astor (also known as Echo)
 * Mykros, Anatol
 * Myla (also known as Thalia Tate)
 * Myles Adrian
 * Myndi Mayer
 * Myra Allen
 * Myriad
 * Myrna Gentry
 * Myron (Warner Bros. Animation (DCAU))
 * Myrrha
 * Myrrt
 * Myrwhydden
 * Mysa Nal (also known as White Witch, Xola Aq, Hag and Black Witch)
 * Mystallo (Amalgam Comics)
 * Mystek
 * Mystelor
 * Mysto (also known as Rick Carter)
 * Mystral
 * Mythos, Lord (WildStorm)