Villains who have appeared in the X-Men series, as well as numerous related titles, such as X-Factor, X-Statix, X-Force and so forth.
All items (442)
M
- Magneto (LEGO Marvel Super Heroes)
- Magneto (Marvel)
- Magneto (Ultimate Marvel)
- Magneto (Wolverine and the X-Men)
- Magneto (X-Men Movies)
- Magneto (X-Men: The Animated Series)
- Magus (Technarchy)
- Major Domo (Marvel)
- Maker (Ultimate Marvel)
- Malekith the Accursed (Marvel)
- Malice (Marvel)
- Mammomax
- Man-Spider
- Mandarin (Marvel)
- Marrow
- Master Mold (Marvel)
- Master Mold (Wolverine and the X-Men)
- Master Mold (X-Men: The Animated Series)
- Mastermind (LEGO Marvel Super Heroes)
- Mastermind (Marvel)
- Masters of Evil (Marvel)
- Matthew Risman
- Mecha Zangief
- Mesmero
- Mikhail Rasputin
- Milan (Marvel)
- Mister Clean
- Mister Jip
- Mister Negative (Marvel)
- Mister Sinister (Marvel)
- Mister Sinister (Wolverine and the X-Men)
- Mojo (Marvel)
- Mole Man (Marvel)
- Mondo (Marvel)
- Monolith
- Moria Mactaggert
- Morlocks (Marvel)
- Moses Magnum
- Mr. & Mrs. Bristow
- Mr. Sinister (Deadpool)
- Mr. Sinister (X-Men: The Animated Series)
- Multiple Man
- Mutant Response Division
- Mysterio (Marvel)
- Mysterio (Old Man Logan)
- Mystique (LEGO Marvel Super Heroes)
- Mystique (Marvel)
N
O
P
- Pandemonia
- Paradigm
- Peepers (Marvel)
- Phaeder
- Phalanx (Marvel)
- Phat
- Piecemeal
- Pilgrimm
- Piper (Marvel)
- Plague (Marvel)
- Plantman
- Poisons
- Porcupine (Marvel)
- Post (Marvel)
- Predator X
- President Kelly
- President X (Marvel Ruins)
- Pretty Boy
- Professor Xavier (Marvel Noir)
- Proteus (Marvel)
- Psycho-Man
- Punisher (The Punisher Kills the Marvel Universe)
- Purple Man
- Pyro (LEGO Marvel Super Heroes)
- Pyro (Marvel)
- Pyro (X-Men Movies)
R
- Ragnarok (Marvel)
- Ramrod (Marvel)
- Reavers (Marvel)
- Red Ghost
- Red Onslaught
- Red Skull (Spider-Man: The Animated Series)
- Reverend Craig
- Rhino (LEGO Marvel Super Heroes)
- The Right
- Ringmaster (Marvel)
- Riptide
- Riptide (X-Men Movies)
- Romulus
- Ronan the Accuser (Marvel)
- Ronny Drake
- Roulette (Marvel)
- Ruckus (Marvel)
- Rusty Collins
S
- Sabretooth (LEGO Marvel Super Heroes)
- Sabretooth (Marvel)
- Sabretooth (X-Men: The Animated Series)
- Sanjar Javeed
- Sat-Yr-9
- Saul (Marvel)
- Sauron (Marvel)
- Savage Hulk
- Savage Land Mutates
- Scaleface
- Scanner
- Scarlet Witch (Marvel Ruins)
- Scarlet Witch (Marvel)
- Scrambler
- Seamus Mellencamp
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- Sebastian Shaw (Marvel)
- Selene Gallio
- Sentinels (LEGO Marvel Super Heroes)
- Sentinels (Marvel)
- Sentinels (X-Men Movies)
- Seth (Marvel)
- Shadow King (Legion)
- Shadow King (Marvel)
- Shadow King (Wolverine and the X-Men)
- Shadow Xavier
- Shinobi Shaw
- Shocker (Marvel)
- Shocker (Randall Darby)
- Silver Samurai
- Silver Samurai (Marvel)
- Silver Samurai (Wolverine and the X-Men)
- Silver Samurai (X-Men Movies)
- Simon Trask
- Skrulls
- Skullbuster
- Smiley Men
- Spider-Man (Web of Shadows)
- Spike (X-Men Films)
- Spineless Ones
- Spiral (Marvel)
- Spoor
- Spot (Marvel)
- Static
- Stegron
- Stepford Cuckoos
- Stephen Lang
- Stryfe
- Sublime
- Sugar Man
- Sunder (Marvel)
- Sunstroke
- Super-Adaptoid
- Supercharger
- Superia
- Suvik Senyaka
T