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Dan Stevens

David Haller / Legion

Rachel Keller

Sydney ‘Syd’ Barrett

Aubrey Plaza

Lenny Busker

Jeremie Harris

Ptonomy Wallace

Amber Midthunder

Kerry Loudermilk

Bill Irwin

Cary Loudermilk

Jean Smart

Melanie Bird

Hamish Linklater

Clark Debussy

Navid Negahban

Amahl Farouk / Shadow King

Mackenzie Gray

The Eye

Katie Aselton

Amy Haller

Luke Roessler

David Haller (6-8 Years)

Quinton Boisclair

Devil with the Yellow Eyes

Ellie Araiza

Philly

Devyn Dalton

Angry Boy

Brad Mann

Rudy

Nathan Hurd

The Monk

Kirby Morrow

Benny / Large Man Karl

Scott Lawrence

Dr. Poole

David Selby

Brubaker

David Ferry

Dr. Kissinger

Jemaine Clement

Oliver Bird

Tatyana Forrest

David's Mother

Dario Giordani

David's Father

Christian Convery

David (4 Years Old)

Lillian Lim

The Monk

Eddie Jemison

The Greek

Daniel Kailin

Asian Teenager

Stephanie Van Dyck

Skeletal Fat Lady

Sebastian Billingsley-Rodriguez

David (Toddler)

Matt Hamilton

Ben

Mike Azevedo

'Renal Failure' Alvarez

Ese Atawo

Day Room Duty Nurse

June B. Wilde

Science Teacher

Maddie Phillips

Jr. Prom Date (Crying)

Stephanie Lavigne

Patient Dancer #7

Camille Mitchell

Dr. Bates

Jillian Dion

Irma Whitecloud

Emily Shuttleworth

Angry Boy

Gabriel Jacob-Cross

Ptonomy (5 yrs)

Paul Belsito

The Man Who Hides

Sharlene Royer

Ptonomy's Mom

Keir O'Donnell

Daniel

Jesse Chongo

Buster Debusey

Paul Jarrett

General Stanley

Jennifer Kitchen

Burt Hart

Ben Dextraze

Aide

Christopher Collins

Wall Street Frat Boy

Nathan Blair

10 Year Old Boy

Molly Hagan

Laura Mercer

Seamus Dever

Don Eichman

Valentina Izumi

David's wife

Lily Rabe

Joan Barrett

Pearl Amanda Dickson

Teen Syd

Violet Hicks

Young Syd

Audrey Lynn

6 Year Old Syd