cast
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Dan Stevens
David Haller / Legion
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Rachel Keller
Sydney ‘Syd’ Barrett
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Aubrey Plaza
Lenny Busker
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Jeremie Harris
Ptonomy Wallace
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Amber Midthunder
Kerry Loudermilk
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Bill Irwin
Cary Loudermilk
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Hamish Linklater
Clark Debussy
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Jean Smart
Melanie Bird
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Navid Negahban
Amahl Farouk / Shadow King
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Luke Roessler
David Haller (6-8 Years) / David
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Katie Aselton
Amy Haller
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Mackenzie Gray
The Eye
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Lauren Tsai
Jia-Yi / Switch
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Quinton Boisclair
Devil with the Yellow Eyes
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Lexa Gluck
Vermillion #3
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Ellie Araiza
Philly
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Devyn Dalton
Angry Boy
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Stephanie Corneliussen
Gabrielle
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Jemaine Clement
Oliver Bird
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Brad Mann
Rudy
- Nathan Hurd The Monk
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Scarlett DeMeo
Manson Girl #1 / Cynthia
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Harry Lloyd
Charles Xavier / Professor X
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Scott Lawrence
Dr. Poole
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Kirby Morrow
Benny / Large Man Karl
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David Selby
Brubaker
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David Ferry
Dr. Kissinger
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Tatyana Forrest
David's Mother
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Dario Giordani
David's Father
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Christian Convery
David (4 Years Old)
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Lillian Lim
The Monk
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Eddie Jemison
The Greek
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Daniel Kailin
Asian Teenager
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Stephanie Van Dyck
Skeletal Fat Lady
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Keir O'Donnell
Daniel
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Sebastian Billingsley-Rodriguez
David (Toddler)
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Jason Mantzoukas
Jerome / Wolf
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Sophie Mackenzie Nack
Sweetie
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Margaux Brooke
Eloise
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Matt Hamilton
Ben
- Mike Azevedo 'Renal Failure' Alvarez
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Ese Atawo
Day Room Duty Nurse
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June B. Wilde
Science Teacher
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Maddie Phillips
Jr. Prom Date (Crying)
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Stephanie Lavigne
Patient Dancer #7
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Camille Mitchell
Dr. Bates
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Jillian Dion
Irma Whitecloud
- Emily Shuttleworth Angry Boy
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Gabriel Jacob-Cross
Ptonomy (5 yrs)
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Paul Belsito
The Man Who Hides
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Sharlene Royer
Ptonomy's Mom
- Jesse Chongo Buster Debusey
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Paul Jarrett
General Stanley
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Jennifer Kitchen
Burt Hart
- Ben Dextraze Aide
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Christopher Collins
Wall Street Frat Boy
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Nathan Blair
10 Year Old Boy
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Molly Hagan
Laura Mercer
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Seamus Dever
Don Eichman
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Valentina Izumi
David's wife
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Lily Rabe
Joan Barrett
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Pearl Amanda Dickson
Teen Syd
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Violet Hicks
Young Syd
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Audrey Lynn
6 Year Old Syd
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Carmela Nozza Guizzo
Young Amy (4 yrs)
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Lola Raie
Singing Girl #3
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Samantha Desman
9-Year-Old Lenny
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Curtis Webster
Doctor
- Spencer Ward Jason
