Chapter 6 is the sixth episode of Legion that aired on March 15, 2017.
David goes back to where it all started .
- Dan Stevens as David Haller
- Rachel Keller as Sydney Barrett
- Aubrey Plaza as Lenny Busker/Farouk
- Bill Irwin as Cary Loudermilk
- Jeremie Harris as Ptonomy Wallace
- Amber Midthunder as Kerry Loudermilk
- Katie Aselton as Amy Haller
- Jean Smart as Melanie Bird
- Mackenzie Grey as The Eye
- Brad Mann as Rudy
- Gabriel Jacob-Cross as Ptonomy (5 yrs)
- Paul Belsito as The Man Who Hides
- Eugene Wong as The Man In All His Clothes
- Stephanie Van Dyck as Skeletal Fat Lady
- Quinton Boosclair as Devil With The Yellow Eyes
- Sharlene Rouer as Ptonomy's Mom
- When Syd enters the common area of the mental hospital, she focuses on Cary and Kerry playing table tennis for a moment. A closer look reveals that the actors are only pantomiming and don't actually have a ball. Table Tennis sound effects were added in post production to cover up the goof and, a few moments later, the two are shown again playing with a real ball.