Kevin Wendell Crumb

James McAvoy

Casey Cooke

Anya Taylor-Joy

Claire Benoit

Haley Lu Richardson

Dr. Karen Fletcher

Betty Buckley

Marcia

Jessica Sula

Five-Year-Old Casey

Izzie Leigh Coffey

Uncle John

Brad William Henke

Five-Year-Old Casey

Izzie Coffey

Casey's Father

Sebastian Arcelus

Mr. Benoit

Neal Huff

Joe

Robert Michael Kelly

News Anchor

Ukee Washington

Game Show Enthusiast

Ann Wood

Joe

Michael Robert Kelly

Jai, Hooters Lover

M. Night Shyamalan

Kevin's Mother

Rosemary Howard

Vince, Security Guard

Jerome Gallman

Academic Moderator

Lyne Renee

Dr. Fletcher's Patient

Kate Jacoby

Taxi Driver

Peter Patrikios

Flower Kiosk Seller

Kash Goins

Roy Wilson

Security Guy with Dog

Roy James Wilson

Older Worker

Christopher Lee Philips

Paramedic

Julie Potter

Police Officer #1

Ameerah Briggs

Police Officer #2

Nakia Dillard

Television Reporter

Robin Rieger

Diner Waitress

Emlyn Morinelli McFarland

Diner Waitress

Emlyn McFarland

Game Show Contestant (voice)

Dann Fink

Hannah (uncredited)

Kim Director

Diner Waitress

Emlyn Elizabeth Morinelli

Game Show Host (voice)

Bruce Winant

Maria Breyman

David Dunn (uncredited)

Bruce Willis

Restaurant Patron (uncredited)

Gary Ayash

Bar Patron (uncredited)

Robert Bizik

Geraldo (uncredited)

Junnie Lopez

Waiter (uncredited)

Matthew Nadu

Claire's Party Guest (uncredited)

James Robinson Jr.

EMT (uncredited)

John Mitchell

Pedestrian (uncredited)

Aleksandra Svetlichnaya

Homeland Security (uncredited)

John Jillard Sr.

Detective (uncredited)

Vincent Riviezzo