Claire Foy

Character: Sawyer Valentini

Joshua Leonard

Character: David Strine

Jay Pharoah

Character: Nate Hoffman

Juno Temple

Character: Violet

Aimee Mullins

Character: Ashley Brighterhouse

Amy Irving

Character: Angela Valentini

Sarah Stiles

Character: Jill

Marc Kudisch

Character: Bank Manager

Colin Woodell

Character: Mark

Myra Lucretia Taylor

Character: Counselor

Lynda Mauze

Character: Dolores

Zach Cherry

Character: Dennis

Polly McKie

Character: Nurse Boles

Raúl Castillo

Character: Jacob

Michael Mihm

Character: Steve

Robert Kelly

Character: Steve's Partner

Natalie Gold

Character: Female Patient

Sol Marina Crespo

Character: Female Patient

Will Brill

Character: Male Patient

Steven Maier

Character: Male Patient

Matthew R. Staley

Character: Medical Technician

Matt Mancini

Character: Medical Technician

Emily Happe

Character: Friendly Nurse

Gibson Frazier

Character: Dr. Hawthorne

Erin Wilhelmi

Character: Hayley

Joseph P. Reidy

Character: Lawyer

Matt Damon

Character: Detective Ferguson

Erika Rolfsrud

Character: Medical Examiner

Elizabeth Goodman

Character: TruthBite Editor

Roshanna Jenkins

Character: Federal Agent

Lance Coughlin

Character: Police Officer (uncredited)

Kevin Dean O'Connor

Character: George Shaw (uncredited)

Ursula Triplett

Character: Arresting Police Officer (uncredited)