Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Mark Hazzard: Merc | Mark Hazzard: Merc | Mark-H… | Show |
| Master Khan | Master Khan | Master… | Show |
| Master Man | Master Man | Master… | Show |
| Mantis | Mantis | Mantis | Show |
| Margaret Slade | Margaret Slade | Margar… | Show |
| Man-Thing | Man-Thing | Man-Th… | Show |
| Masque | Masque | Masque | Show |
| Mariko Yashida | Mariko Yashida | Mariko… | Show |
| Master Menace | Master Menace | Master… | Show |
| Marvel Boy (Robert Grayson) | Marvel Boy | Marvel… | Show |
| Martinex | Martinex | Martin… | Show |
| marvel | Null | marvel | Show |
| Marco Delgado | Marco Delgado | Marco-… | Show |
| Master Izo | Master Izo | Master… | Show |
| Marrina Smallwood | Marrina Smallwood | Marrin… | Show |
| Marrow | Marrow | Marrow | Show |
| Marvel Boy | Marvel Boy | Marvel… | Show |
| Masked Marauder | Masked Marauder | Masked… | Show |
| Massacre | Massacre | Massac… | Show |
| Margali Szardos | Margali Szardos | Margal… | Show |