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