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