Eric Kevin Masterson

Gender: ♂
Alias: Thor II, Thunderstrike I
Spouse(s): Marcy Masterson

Marcy Masterson
Mastodon
Matador
Match

Ben Hammil
Gender: ♂
Member of: Paragons

Features
Heroic Age: X-Men 1.FT
New X-Men: Academy X Yearbook 1.FT

Maul

Gender: ♂
Member of: Order II

Mauler I
Mauler II
Mauler III
Mauvais
Maverick I
Maverick II

Christopher Bradley
Gender: ♂
Alias of: Bolt

Features
All-New Official Handbook of the Marvel Universe A to Z 7.FT

Mavericks
Max
Maxam
Luna Maximoff
Maximus
Maxxon

Member of: Infinity Watch

Melinda May
Dr. Margaret Mayfair

Gender: ♀
Member of: Project: PEGASUS

Mayhem I
Mayhem II

April Parker
Gender: ♀
Clone/Copy/Impersonator of: Spider-Girl I
Universe/Dimension/Timeline: Earth-982 (M2)

Features
Official Handbook of the Marvel Universe A to Z Update 5.FT

Mayhem Organization
Maymee Hazzit
Mayor
Meredith McCall
Kate McClellan

Gender: ♀
Member of: Knights of Pendragon

Henry P. McCoy (HouseOfM)

Gender: ♂
Alternate version of: Beast I
Universe/Dimension/Timeline: Earth House of M

Casey McKann
Ian McNee
Heather McNeil

Gender: ♀
Alias: Heather Hudson, Vindicator II
Alternate version(s): Guardian II
Spouse(s): Dr. James McDonald Hudson

Harold Meachum
Mean

Gender: ♂
Alternate version of: Wolverine I
Universe/Dimension/Timeline: Earth Kitty's Fairy Tale

Features
Wolverine Encyclopedia 2.FT

Meanstreak

Henri Huang
Gender: ♂
Member of: X-Men 2099

Features
The Marvel Masterpieces 2 Collection 2.FT

Meatmarket

Member of: Lilin

Mechamage
Mechano
Medusa

Gender: ♀
Individual of: Gorgons

Medusa II

Medusalith Amaquelin Boltagon (Madame Medusa)
Created by: Stan Lee, Jack Kirby
Gender: ♀
Alternate version(s): Medusa II (Earth X)
Apprentice of: Future Foundation
Child(ren): Ahura
Individual of: Inhumans
Member of: Fantastic Four, Frightful Four, Lady Liberators I, Royal Family of the Inhumans
Parent(s): Ambur, Quelin
Relative(s): Gorgon I, Karnak, Maximus, Triton
Sibling(s): Crystal
Spoof(s): Mod-dusa
Spouse(s): Black Bolt I

Main
Beyond 1 - 6
Beyond (HC) 1
Beyond TPB 1
I ♥ Marvel: Marvel Ai 1
Inhumans TPB: Beware the Inhumans 1
Marvel Masterworks: The Inhumans (HC) 1
Marvel Super-Heroes (II) 15
Mighty Marvel: Women of Marvel TPB 1
Women of Marvel 1
Women of Marvel 1

Cameo
The Last Fantastic Four Story 1

Features
Avengers Now! 1.FT
Avengers Strike File 1.FT
Essential Fantastic Four 4.FT, 6.FT
Essential Official Handbook of the Marvel Universe 1.FT
Essential Official Handbook of the Marvel Universe Deluxe Edition 2.FT
Essential The Official Handbook of the Marvel Universe Master Edition 2.FT
Fantastic Four (III) 3.FT
Fantastic Four Annual (I) 5.FT, 14.FT
The Marvel Comics Index (G&T Enterprises) 4.FT
Marvel Fanfare (I) 38.FT, 45.FT
Marvel Illustrated: Swimsuit Issue 1.FT
Marvel Knights Sketchbook (Wizard Publication) 1.FT
Marvel Swimsuit Special 2.FT - 3.FT
The Official Handbook of the Marvel Universe 7.FT
The Official Handbook of the Marvel Universe Deluxe Edition 8.FT
The Official Handbook of the Marvel Universe Master Edition 24.FT
Official Handbook of the Marvel Universe: The Women of Marvel 2005 1.FT
Thanos Sourcebook 1.FT
War of Kings: Who Will Rule? 1.FT
Women of Marvel 1.FT

Medusa II (Earth X)

Medusalith Amaquelin Boltagon
Gender: ♀
Alternate version of: Medusa II
Universe/Dimension/Timeline: Earth X (Earth-9997)

Features
Earth X Sketchbook 1.FT

Medusa Web

Gender: ♀
Universe/Dimension/Timeline: New Universe

Main
Justice 24, 26

Megans
Megatak

Gregory Nettles
Gender: ♂

Features
Punisher (VIII) 6.FT
Thor: Asgard's Avenger 1.FT

Meggan
Mekano
Mekara
Mekkans
Meld

Jeremiah Muldoon
Gender: ♂

Melee

Gender: ♀
Member of: Initiative trainees

Seamus Mellencamp

Gender: ♂
Member of: Acolytes

Meltdown
Melter I
Melter II

Christopher Colchiss
Gender: ♂
Member of: Young Avengers II, Young Masters

James Melvin

Gender: ♂
Member of: Roxxon Oil Corporation

MeMe I

Member of: Morlocks

MeMe II

Alias of: Hope Spalding-Summers
Member of: X-Force VI

Men Fish
Menace
Mengo Brothers
Mentallo
Mentor I
Mentor II
Mentus

Member of: Spaceknights I