Jessica Chastain
Amy Loughren

Eddie Redmayne
Charles Cullen

Nnamdi Asomugha
Danny Baldwin

Kim Dickens
Linda Garran

Malik Yoba
Sam Johnson

Alix West Lefler
Alex Loughren

Noah Emmerich
Tim Braun

Gabe Fazio
Tom Anderson

Ajay Naidu
Dr. Robert Hind

Moe Irvin
Mark Rossi

Maria Dizzia
Lori Lucas

Shaun O'Hagan
Prosecutor Ellis

Marcia Jean Kurtz
Jackie

Myra Lucretia Taylor
Vivian Neal

Denise Pillott
Nurse 1

Dartel McRae
Nurse 2

Judith Delgado
Ana Martinez

Devyn McDowell
Maya Loughren

Jennean Farmer
Receptionist

David Lavine
Duncan Beattie

Bruce MacVittie
Malcolm Burrel

Brooke Stacy Mills
Nurse Hardwick

Christine Healy
Assistant

Alex Bartner
Messenger

Anjelica Bosboom
Kelly Anderson

Rebecca Watson
Nurse Sandra

Jennifer Regan
ER Nurse

Andrew James Bleidner
Alex Lombardo (uncredited)

David Boston
Driver (uncredited)

Chris Henry Coffey
Dr. Steven Reed (uncredited)

Victor Cruz
Gene Smith (uncredited)

Gina Jun
Doctor (uncredited)

Becca Marks
Night Nurse (uncredited)

Lauren Yaffe
ICU Patient (uncredited)