Skip to content

When you buy through our links, we may earn a commission. Thank you for your support.

When you purchase through links on our site, we may earn an affiliate commission. Thanks!

Home » Marvel Guides

Legion Reading Order, David Haller’s story

  • by

David Haller was the first X-Men character to headline a live-action TV series. It’s easy to imagine him as a major X-Men character. Despite making his debut in the 1980s, he doesn’t feature in many Marvel comic books. Nevertheless, David Haller, also known as Legion, has left his mark on the X-Men universe and its readers.

Created by writer Chris Claremont and artist Bill Sienkiewicz, David Haller first appeared in New Mutants #25 in March 1985. He is the mutant son of Charles Xavier, the renowned leader of the X-Men, and Gabrielle Haller, a Holocaust survivor who chose not to inform Xavier that she was pregnant following their amicable split. Xavier would discover that David was his son sometime after founding the New Mutants.

David’s incredible mental powers fractured his mind — and now, each of his personalities controls a different ability! And they’re not all friendly, as Xavier and the New Mutants find out the hard way!

David is one of the most powerful mutants, with the ability to create spontaneous mutations with varying attributes, as well as the power to warp reality. He also suffers from dissociative identity disorder. Upon someone’s death, David can absorb their psyche and create new alter egos. Each of his personalities is associated with a different power: for example, Jemail Karami has telepathic abilities, Jack Wayne has telekinetic abilities, and Cyndi has pyrokinetic abilities.

To discover David Haller’s complex history and powers, filled with alternate realities and family trauma, take a look at our Legion Reading Order.

The Complete Legion Reading Order

It all starts here! David Haller first appeared during Chris Claremont’s run on the New Mutants series. These appearances introduce the character and his extraordinary mental powers. Xavier and the New Mutants discover that not all of David’s personalities are friendly.

The mutant then plays a major role during the Muir Island crossover event, where he attracts the attention of one of Xavier’s oldest and most malevolent foes: Amahl Farouk, the Shadow King.

Marvel Comics has collected all the important issues for understanding David’s early history in the X-Universe into one single trade paperback. The book was released when the TV series Legion was showing on FX, so it may be harder to find now.

Naturally, all of these issues have been reprinted in other collections. You can collect them in Epic Collection: 

If you prefer Hulk-size books, you can also find those stories reprinted in the Omnibus format:

  • The New Mutants Omnibus Vol. 1 (Marvel Graphic Novel (1982) #4; New Mutants (1983) #1-34; New Mutants Annual (1984) #1; Marvel Team-Up (1972) #100 (A Story), #149; Marvel Team-Up Annual (1976) #6; Uncanny X-Men (1981) #160, #167, #180, #189, #192; Magik (1983) #1-4)
  • The New Mutants Omnibus Vol. 2 (New Mutants (1983) #35-54; New Mutants Annual (1984) #2-3; New Mutants Special Edition (1985) #1; X-Men Annual (1970) #9-10; Power Pack (1984) #20, #33; Fallen Angels (1987) #1-8; Firestar (1986) #1-4; New Mutants: War Children (2019) #1; material from Web of Spider-Man Annual (1985) #2)
  • X-Men by Claremont and Lee Omnibus Vol. 1 – Collects Uncanny X-Men #244–269, Annual #13; Classic X-Men #39.
  • X-Men By Chris Claremont & Jim Lee Omnibus Vol. 2 – Collects X-Factor #63-70; Uncanny X-Men #273-280; X-Men #1-9, material from #10-11; Ghost Rider #26-27.

X-Men Hickman

Rise to the Age of Apocalypse. David has been left in a catatonic state for a time and is receiving intense medical care when we reconnect with the character. 

Once Legion’s shattered psyche has been reunited, he is driven by a single purpose: to atone for all the suffering he has inflicted on his father, Charles Xavier. To achieve this, he plans to fulfil Xavier’s dream by travelling back in time to kill its greatest obstacle: Magneto!

  • X-Men: Legion Quest
    Collects Uncanny X-Men #318-321, X-Men (vol. 2) #38-41, X-Men Unlimited #4-7, X-Men Annual (1992) #3, X-Factor #107-109, Cable #20.

Legion Quest serves as a prelude to the Age of Apocalypse. It’s from David’s actions that the Age of Apocalypse alternate timeline was born, although David is not present in this classic X-Story, except for its conclusion X-Men Omega #1.

X-Men Hickman

The Return of Legion. David Haller was presumed dead for a long time. It all changes when the newly reformed New Mutants must face Legion, who had been banished to a place called “no-time”, and his different personalities once again. David appears in New Mutants (2009) #1-5, #9, #14, #20, #21, collected in:  

X-Men Hickman

X-Men: Legacy. It’s a time of reconstruction for the X-Men, and for David, who is forced to grapple with reality. More than ever before, as a new personality is trying to protect him by creating a pocket reality.

This alternate reality is the Age of X: a dystopia in which mutants have nearly been hunted to extinction. Legion is the hero he always wanted to be as part of the resistance, but he must face the truth and make a choice!

The Children of the Atom and Earth’s Mightiest Heroes pit off against each other in Avengers Vs. X-Men, where David makes a panel appearance with his father in Avengers vs. X-Men #5. You can read this issue and the conclusion of this event to gain a better grasp of the context for the following series, which takes place in the aftermath of the event.

Now more than ever, Legion is ready to conquer his demons…and embrace his father’s legacy in the celebrated Si Spurrier’s Legacy series.

Peter Milligan and Wilfredo Torres took a stab at the character, delivering the most unpopular Legion story and mostly destroying all of Spurrier’s work on the character.It is not recommended and you can totally skip it. 

X-Men Hickman

The X-Men are facing a new crisis in X-Men: Disassembled, with David desperate to help as the mutants are facing the Horsemen of Salvation:

Totally optional. Spanning from this story is the Age of X-Men alternate reality event, a utopia where fear and hatred are things of the past. All people are united under the banner of mutantkind, and all of mutantkind idolize the X-Men. In this reality, Legion has been placed in the Danger Room Prison Complex and is the most dangerous prisoner. 

X-Men Hickman

The Krakoa era and Legion of X. Professor X announced the new mutant nation of Krakoa to the people of Earth, under the creative guidance of Jonathan Hickman. This represents a new world for the X-Men, but where does David Haller fit in? Writer Si Spurrier returns to the character to provide an answer in Way of X and Legion of X, in which Legion works alongside Kurt Wagner. But the Age of Kraoka was not meant to last, and David plays a small part in the fallout of this saga in Kieron Gillen’s X-Men: Forever.

X-Men Hickman

Where is Legion now? In Giant-Size X-Men (2025), it was said that David was in the White Hot Room in the afterlife. Since his first appearance, the character has disappeared and been presumed dead on more than one occasion, only to make a comeback each time. We can safely assume that he is destined to return sooner or later.

For more X-Stories, check out our Complete X-Men Comics Guide.

Pin
Tags:

Leave a Reply

Your email address will not be published. Required fields are marked *