Legion
David Charles Haller
Created by Chris Claremont & Bill Sienkiewicz
First Appearance
The New Mutants #25 (1985)
Appearances
111
Primary Team
X-Men
Debut Era
1980s
Professor X's son, an omega-level mutant whose fractured psyche contains hundreds of distinct personalities, each controlling a different superpower. David Haller is one of the most powerful beings in the Marvel Universe — and one of the most unstable. His attempt to kill Magneto in the past accidentally created the Age of Apocalypse. His story is the X-Men's most intimate exploration of mental illness and power.
Appearances Over Time
Series
Most Appearances By Series
X-Men Legacy (2013) 25 issues
X-Men: Legacy (2008) 12 issues
The Uncanny X-Men (1981) 12 issues
Legion of X (2022) 10 issues
New Mutants (2009) 10 issues
Uncanny X-Men (2019) 8 issues
X-Factor (1986) 5 issues
X-Men (1991) 4 issues
Way of X (2021) 4 issues
The New Mutants (1983) 3 issues
Events
Event Participation
First Appearance
The New Mutants #25
1985
First Appearance
The New Mutants #25
March 1985