Legion (Marvel Comics)
fictional character in Marvel Comics
Legion (David Charles Haller) is a fictional character appearing in American comic books published by Marvel Comics, typically as an antagonist or supporting character in stories featuring the X-Men and related characters.
He is the mutant son of Charles Xavier and Gabrielle Haller. Legion takes the role of an antihero who has a severe mental illness, including a form of dissociative identity disorder in which each of his identities exhibits different mutant abilities or powers.
The character made his live-action debut in the FX television series Legion (2017–19), portrayed by Dan Stevens.
Publication history
Created by writer Chris Claremont and artist Bill Sienkiewicz, Legion first appeared following the conclusion of The New Mutants #25 (March 1985) in Moira MacTaggert's notes, leading to his full story appearance in the following issue, The New Mutants #26 (April 1985).
In 1991, Legion was assigned to be a co-starring character in the newly revamped X-Factor, as a member of the eponymous superteam. However, writer Peter David was uncomfortable with this, and ultimately editor Bob Harras independently came to the conclusion that Legion should not be used in the series. David explained "I don't mind building a story around [Legion], but working him into a group – you're really asking for a bit much from the reader. Believing that a group of people will come together to form a team is enough of a suspension of disbelief... 'Oh, by the way, one of them is so nuts he shouldn't be setting foot off Muir Island'...
“Legion (Marvel Comics)” enters the record as fictional character in Marvel Comics. Crown Archives preserves that source wording while asking what Legion, Marvel and Comics can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q1607791. The first chronological checks are 2017, 1985 and 1991.
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This entry incorporates text from “Legion (Marvel Comics)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.