Principal Cast
James McAvoy
as Kevin Wendell Crumb
Anya Taylor-Joy
as Casey Cooke
Haley Lu Richardson
as Claire Benoit
Jessica Sula
as Marcia
Betty Buckley
as Dr. Karen Fletcher
Brad William Henke
as Uncle John
Sebastian Arcelus
as Caseys Father
Neal Huff
as Mr. Benoit
Kim Director
as Hannah
Lyne Renee
as Academic Moderator
Maria Breyman
as High-School Student
Peter Patrikios
as Cab Driver
Steven Dennis
as Dan at Next Table
Jon Douglas Rainey
as Dr. Clerque
Jalina Mercado
as Zoo Goer
Matthew Nadu
as Waiter
Kash Goins
as Flower Kiosk Worker
James Robinson Jr.
as Claires Party Guest
Nakia Dillard
as Policeman #1
Roy James Wilson
as Homeland Security Officer
John Jillard Sr.
as Homeland Security
John Mitchell
as EMT
Andrea Havens
as Traveler in the Station
Barbara Edwards
as Diner Patron
Robert Bizik
as Bar Patron
Matthew Bowerman
as Businessman / Father
Julie Potter
as Female Paramedic
Kelly Werkheiser
as Caseys Mother
Junnie Lopez
as Geraldo
Shawn Gonzalez
as Train Conductor
Aleksandra Svetlichnaya
as Pedestrian
Michael J. Kraycik
as Zoo Worker
Michelle Santiago
as Zoo Worker
Corinne Costa
as Party Guest
Colin Campbell
as Boy in Park
Michaela Bockarie
as Zoo Attendee
Gary Ayash
as Restaurant Patron (uncredited)
Jeff Buckner
as Police Officer (uncredited)
Kerry Dutka
as Restaurant and Mall Patron (uncredited)
Vincent Riviezzo
as Detective (uncredited)
Izzie Coffey
as Five-Year-Old Casey
Ukee Washington
as News Anchor
Bruce Willis
as David Dunn
M. Night Shyamalan
as Jai
