Kiefer Sutherland

Dr. Barry Wolfson

Nina Dobrev

Marlo

Kiersey Clemons

Sophia

Diego Luna

Ray

David Blackman

Executive Producer

Brian Oliver

Executive Producer

Elliot Page

Courtney

Beau Mirchoff

Brad Mauser

Jacob Soley

Alex

Steve Byers

Marlo's Brother

Charlotte McKinney

Girl on Bicycle

James Norton

Jamie

Michael Bederman

Executive Producer

Niels Arden Oplev

Director

Wendy Raquel Robinson

Sophia's Mother

Madison Brydges

Tessa

Anna Arden

Alicia

Miguel Anthony

Cyrus Gudgeon

Jenny Raven

Irina Wong

Lisa Codrington

Chief Resident

Emily Piggford

Neurology Resident #1

Martha Girvin

Neurology Resident #2

Taylor Trowbridge

Lauren

Nadine Whiteman

Paramedic #1

Richard Young

The Dean's Secretary

Mary Grant

Radiologist

Stefano DiMatteo

Paramedic #2

Jimi Shlag

Burly Patient

Robert Mitas

Executive Producer

Hassan Taher

Executive Producer