X-Men

""It's 1987. Do you know what your children are?""

A long-running franchise, starring mutants with superpowers. The good guy Mutants--mainly the eponymous X-Men, led by Professor Xavier--use their powers to fight the bad mutants and protect normal humans--many of whom fear and hate them anyway. Features a lot of characters.

Comic Books

 * X-Men
 * Excalibur
 * Exiles
 * Generation X
 * Magik
 * New Mutants
 * New X-Men
 * Ultimate X-Men
 * X-Factor
 * X-Men Forever
 * X-Force

Storylines

 * Age of Apocalypse
 * Days of Future Past
 * The Dark Phoenix Saga
 * Frank Miller's Wolverine
 * House of M
 * Avengers vs. X-Men

Individual Characters

 * Cable
 * Daken
 * Dazzler
 * Deadpool
 * Magneto
 * Storm
 * Sub-Mariner
 * Wolverine
 * X-23
 * X-Man

Animated Series

 * X-Men, the series from the mid 1990s.
 * X-Men: Evolution, the series from the early 2000s.
 * Wolverine and the X-Men, the series from the late 2000s.
 * X-Men, the Anime from the early 2010s.

Film

 * X-Men series
 * X-Men 1
 * X2: X-Men United
 * X-Men: The Last Stand
 * X Men Origins: Wolverine
 * X-Men: First Class

Video Games

 * X-Men Arcade
 * X-Men: Children of the Atom
 * X-Men: Destiny
 * X-Men Legends and X-Men Legends II: Rise of Apocalypse
 * X-Men Next Dimension