The third and final season of the American cable television series Legion is based on the Marvel Comics character David Haller / Legion, a mutant diagnosed with schizophrenia at a young age. The season is produced by FX Productions in association with Marvel Television. Noah Hawley serves as showrunner.

Dan Stevens stars as Haller, with Rachel Keller, Aubrey Plaza, Bill Irwin, Navid Negahban, Jeremie Harris, Amber Midthunder and Hamish Linklater also returning from previous seasons to star. They are joined by newcomer Lauren Tsai. A third season of Legion was ordered by FX in June 2018, and FX later confirmed it would be the final season in February 2019.

Legion (season 3)

The season premiered on FX on June 24, 2019, and consists of eight episodes.

Legion (season 3)

Episodes

Cast and characters

Main

Dan Stevens as David Haller / Legion

Rachel Keller as Sydney "Syd" Barrett

Aubrey Plaza as Lenny Busker

Bill Irwin as Cary Loudermilk

Navid Negahban as Amahl Farouk / Shadow King

Jeremie Harris as Ptonomy Wallace

Amber Midthunder as Kerry Loudermilk

Lauren Tsai as Jia-yi / Switch

Hamish Linklater as Clark Debussy

Special guest stars

Jean Smart as Melanie Bird

Jemaine Clement as Oliver Bird

Recurring

Harry Lloyd as Charles Xavier / Professor X

Stephanie Corneliussen as Gabrielle Xavier

Notable guest stars

Jason Mantzoukas as Jerome / Wolf

Production

Development

In June 2018, the series was renewed for a third season. In February 2019, it was announced that the third season would premiere in June 2019, and will serve as the final season of the series. Hawley's plan had always been for three seasons, he stated, "I think endings are what give stories meaning. I always thought about this as a complete story, and it felt like three acts of a story." He continued:

Legion (season 3)

The season consists of eight episodes.

Casting

Returning from previous seasons to star are Dan Stevens as David Haller, Rachel Keller as Sydney "Syd" Barrett, Aubrey Plaza as Lenny Busker, Bill Irwin as Cary Loudermilk, Navid Negahban as Amahl Farouk / Shadow King, Jeremie Harris as Ptonomy Wallace, Amber Midthunder as Kerry Loudermilk, and Hamish Linklater as Clark Debussy. In January 2019, Lauren Tsai was cast as Switch, "a young mutant whose secret ability serves as the key to executing David Haller's plan". She is loosely based on the Marvel Comics character of the same name who was male. In February, it was announced that the characters Gabrielle Haller and Professor X would appear played by Stephanie Corneliussen and Harry Lloyd, respectively. Jean Smart and Jemaine Clement also return in special guest roles as Melanie and Oliver Bird in "Chapter 25".

Design

Reinforced by the idea of David leading a cult, inspirations for set design as well as clothing were drawn from psychedelic visuals from the 1960s and 70s, all while integrating with modern-day elements to avoid dating the series.

Costume designer Robert Blackman continued the theme of mixing fashion from different decades, with prominent features from psychedelic 60s/70s and modern-day fashion. Each character's outfits were updated, with the color palette for each character changed. As the leader of his group, Haller's style resembles that of a guru, particularly his orange tunic. As the second-line leader of the girl group, Busker wears more feminine, violet/blue articles of clothing. Barrett wears predominantly black, drawing stylistic inspirations from Marianne Faithfull. Cary and Kerry Loudermilk both maintain the color palette, although Cary wears more neutral colors while Kerry wears navy and brown. As Wallace has now become a vehicle for the Mainframe, Wallace's clothing has become more muted in color. Other changes include Debussy wearing aubergine suits and Farouk wearing three-piece suits of various neutral colors. With timeless visuals enabled more so by introduction of new character Switch, her timeless style is drawn from mixing Harajuku fashion with pop elements.