The team as it debuted in X-Men #1 (1963).
Members who joined in the 1960s prior to the title going on hiatus.
Members who joined in Giant-Size X-Men #1 (1975).
Other members who joined in the 1970s and 1980s.
Members who joined in the 1990s and 2000s.
Villains who reformed to become heroes are not listed here if they would otherwise appear in a second category above.
Original X-Men
Other Early Members
All-New All-Different X-Men
Other Uncanny X-Men Members
Newer Members
Friends and Allies
Alpha Flight
The New Mutants
Excalibur
X-Factor
The Starjammers
Other Superheroes
Non-Mutants
Aliens
Other Allies
Villains
Brotherhood of Evil Mutants
Morlocks
Other Mutants
The Hellfire Club
Government Individuals and Groups
Aliens
Other Enemies