|Real Name:||David Charles Haller|
|Alias:|| David Haller|
|Relatives:|| Gabrielle Haller (Mother)|
Charles Xavier (Father)
Cain Marko (Uncle)
|First appearance:||Sins of the Son|
Ian is a manifestation of David's inner child, feeling neglected and abandoned. He is selectively mute and also harbors resentment towards Charles Xavier.
David's body changes to match whichever of his multiple personalities is manifesting itself. They all have the same, physical traits, consisting of blonde hair and blue eyes. Ian is a young boy around the age of 7 or 8.
Powers & Abilities
Ian is the passive personality, manifesting the power of pyrokinesis.
David is Charles Xavier and Gabrielle Haller's son. Seen in Episode "Sins of the Son". In the comics, David's personalities developed due to mental disorders. David is disappointed in his father's absence while Lucas (one of his personalities) demonstrates this disappointment through anger and violence. David considered the "true" personality, demonstrated no discernible powers.
Was altered slightly from the comics. He more closely resembled his father, and had inherited his psychic powers, but here Legion was also able to shape-shift somehow to match whichever of his multiple personalities is dominant, with personality and body shifts sometimes happening at random. The mechanism behind this ability is never fully explained, although it is possible that David is using strong psychic abilities to alter people's perception of his appearance rather than actually changing as Mastermind had done when first trying to avoid being discovered. His personalities sometimes appeared in two places at once, supporting the control-of-perception theory. Only three personalities were shown.
The dominant personality, He has psychic abilities superior to Jean's and even caused Professor X's attempt to suppress him to backfire. Lucas lured Professor Xavier to Scotland and tricked him into locking David's other personalities away, leaving Lucas free to be himself. It was never explained what Lucas's goals were after this. The show was canceled before his storyline could be further explored.
Young, mute Ian possessed pyrokinesis, including the ability to create fire at will. His motivations remain unknown, but he sided with Lucas against David and the X-Men.
- Ian is the most docile of the three, being mute and generally doing little. He appears to be a boy of about 9 and his loyalty goes with Lucas. His powers focus mainly on the pyrotechnic abilities.