Susannah Cahalan
Chloë Grace Moretz
Stephen Grywalski
Thomas Mann
Dr. Ryan
Robert Moloney
Dr. Khan
Agam Darshi
Dr. Siskin
Janet Kidder
Dr. Samson
Vincent Gail
Dr. Han
Daniel Bacon
EEG Tech
Alison Araya
Intern
Brian McCaig
Publicist
Elizabeth Bowen
Young Nurse
Nicole LaPlaca
Young Waitress
Lindsay Navarro
Tom Cahalan
Richard Armitage
Woman
Jessie Fraser
Guy
Lee Majdoub
Rhona Nack
Carrie-Anne Moss
Margo
Jenny Slate
Richard
Tyler Perry
Allen
Alex Zahara
Giselle
Jenn MacLean-Angus
Senator
Ken Tremblett
Dr. Najjar
Navid Negahban
Original Music Composer
John Paesano
Executive Producer
Lisa Wolofsky
Producer
Charlize Theron
Lindsay MacAdam
Associate Producer
Jason Tobias
Stunt Coordinator
Lauro David Chartrand-DelValle
Novel
Co-Producer
Gerard Barrett
A.J. Dix
Rob Merilees
Screenplay
Director
Beth Kono
Editor
JC Bond
Production Design
Ross Dempster
Director of Photography
Yaron Orbach
Costume Design
Farnaz Khaki-Sadigh
Todd Giroux