Legion features a character named Haller.
Legion ( David Charles Haller ) is a fictional character appearing in American comic books published by Marvel Comics . Legion is an American cable television series created for FX by Noah Hawley , based on the Marvel Comics character David Haller / Legion . FX and Marvel Television announced a new collaboration to create a television series based on the X-Men character Legion in October 2015 , with Hawley signed on to write , and direct the pilot . Hawley wanted to show Haller as an `` unreliable narrator '' , including mixing 1960s design with modern-day elements , and filming the series through the title character 's distorted view of reality .