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Seasons & episodes
Searching for watch Legion season 3 online? Use the episode list below (legal-only availability varies by region).
Where to watch “Legion” (2017) online legally? See US streaming options first, plus English-region fallbacks.
Legion first aired in 2017 • originally associated with FX • 3 seasons • 27 episodes • around 50 minutes per episode • status: Ended.
If you searched for “watch Legion online” (2017), the safest approach is to verify legal availability in your region (US first, then English-region fallbacks).
It sits in the Action & Adventure, Sci-Fi & Fantasy, Drama space, which helps set expectations for tone and pacing.
It’s generally well-rated by viewers, so it’s a strong pick if you want something reliable to start tonight.
This page includes season navigation, episode list, cast, trailer (when available), and legal provider hints to help you decide quickly.
Synopsis
David Haller, AKA Legion, is a troubled young man who may be more than human. Diagnosed as schizophrenic, David has been in and out of psychiatric hospitals for years. But after a strange encounter with a fellow patient, he’s confronted with the possibility that the voices he hears and the visions he sees might be real.
Keywords
mutant, superhero, based on comic, memory, mental institution, psychological thriller, super power, mental illness, reality vs fantasy, unreliable narrator.
Stills
Similar series
Jupiter's Legacy, Black Lightning, Helstrom, Heroes, Marvel's Jessica Jones, Gen V, Gotham, Peacemaker.
Main cast