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July 30, 2026Short & citedBlog
Civic Viewpoint.
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Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Screen & Stage • Series

Legion (TV series)

Legion is an American surrealist superhero television series created by Noah Hawley for FX.

Updated July 30, 20261 min readCited sources

Legion is a surrealist superhero series created by Noah Hawley for FX. It follows David Haller, a mutant who learns his mental illness may be tied to powerful psychic abilities.

What it is

Legion centres on David Haller (Dan Stevens), a man long diagnosed with schizophrenia who discovers his experiences are actually psychic powers. As his abilities unfold, he becomes embroiled in conflicts with mutants and shadowy organizations. The series ran for three seasons from 2017 to 2019.

Why it matters

Based on the Marvel Comics character David Haller, Legion is set in a universe parallel to the X-Men film series. Created by Noah Hawley, the show is known for its surrealist style and complex storytelling, different from typical superhero fare.

Key details

The main cast includes Dan Stevens, Rachel Keller, Aubrey Plaza, Jean Smart, and Bill Irwin. The series premiered on FX in 2017 and concluded in 2019. Outside the US, it streams on Disney+ in the Star or Marvel hubs.

In short

  • Created by Noah Hawley for FX.
  • Follows David Haller, a mutant with psychic powers.
  • Three seasons from 2017-2019.
  • Set in a parallel universe to the X-Men films.
Canadian angle

Canadian viewers can find the series on Disney+ outside the United States, where all three seasons are available in the Star or Marvel hubs.[1]

Quick questions

What is Legion TV show about?
It follows David Haller, a man diagnosed with schizophrenia who discovers his experiences may be tied to powerful psychic abilities and a wider conflict involving mutants and hidden enemies.
Who is in Legion TV series?
The series stars Dan Stevens as David Haller, with Rachel Keller, Aubrey Plaza, Jean Smart, and Bill Irwin among the other principal cast members.
How many seasons of Legion?
Legion has 3 seasons.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Legion_(TV_series)
    Supports: Created by Noah Hawley; FX/Marvel Television production; three-season run; premise; Disney+ availability outside the U.S.
  2. Wikipedia (German) — https://de.wikipedia.org/wiki/Legion_(Fernsehserie)
    Supports: Based on David Haller/Legion from Marvel Comics; connection to X-Men comics and film universe.
  3. Fandom — https://legion.fandom.com/wiki/Legion
    Supports: Series premise; cast and production overview; three-season renewal history.
  4. Rotten Tomatoes — https://www.rottentomatoes.com/tv/legion
    Supports: Synopsis; season count; watch options including Disney+, Hulu, and Fandango at Home.
  5. Apple TV — https://tv.apple.com/us/show/legion/umc.cmc.1qs2k3j6y79dkp2muruy3tfgy
    Supports: Synopsis and main cast.
  6. Common Sense Media — https://www.commonsensemedia.org/tv-reviews/legion
    Supports: Premise; cast; premiere date; network.