This article contains spoilers for Legion Season 2 and multiple Marvel Comics events.
Dan Stevens’ portrayal of David Haller in the FX series Legion has brought plenty of new fans to the character, but his comic book counterpart is no recent addition to the Marvel universe.
David Haller has been around for over 30 years now, debuting in the pages of New Mutants #25 back in 1985, and most recently getting his own comic book miniseries earlier this year.
In the FX show, David is a complex character. He wants to do right, and believes he’s the hero the world needs, but his mental illness makes his perception of the world unreliable. There’s a blurry line between what David does out of the goodness within him, and when he’s simply finding convenient excuses to act on his own selfish impulses.
Source: IGN.com How Legion Season 3 Could Draw from Marvel's Comics