Dennis / Patricia / Hedwig / The Beast / Kevin Wendell Crumb / Barry / Orwell / Jade

James McAvoy

Acting

Casey Cooke

Anya Taylor-Joy

Acting

Dr. Karen Fletcher

Betty Buckley

Acting

Claire Benoit

Haley Lu Richardson

Acting

Marcia

Jessica Sula

Acting

Five-Year-Old Casey

Izzie Coffey

Acting

Uncle John

Brad William Henke

Acting

Casey's Father

Sebastian Arcelus

Acting

Mr. Benoit

Neal Huff

Acting

News Anchor

Ukee Washington

Acting

Game Show Enthusiast

Ann Wood

Acting

Joe

Robert Michael Kelly

Acting

Jai, Hooters Lover

M. Night Shyamalan

Directing

Kevin's Mother

Rosemary Howard

Acting

Vince, Security Guard

Jerome Gallman

Acting

Academic Moderator

Lyne Renee

Acting

Dr. Fletcher's Patient

Kate Jacoby

Acting

Taxi Driver

Peter Patrikios

Acting

Flower Kiosk Worker

Kash Goins

Acting

Security Guy with Dog

Roy James Wilson

Acting

Older Worker

Christopher Lee Philips

Acting

Paramedic

Julie Potter

Acting

Police Officer #1

Ameerah Briggs

Acting

Police Officer #2

Nakia Dillard

Acting

Television Reporter

Robin Rieger

Acting

Diner Waitress

Emlyn McFarland

Acting

Game Show Contestant (voice)

Dann Fink

Production

Game Show Host (voice)

Bruce Winant

Production

David Dunn (uncredited)

Bruce Willis

Acting

Hannah (uncredited)

Kim Director

Acting

Bar Patron (uncredited)

Robert Bizik

Acting

Geraldo (uncredited)

Junnie Lopez

Acting

Dan at Next Table (uncredited)

Steven Dennis

Acting

Waiter (uncredited)

Matthew Nadu

Acting

Claire's Party Guest (uncredited)

James Robinson Jr.

Acting

EMT (uncredited)

John Mitchell

Acting

Pedestrian (uncredited)

Aleksandra Svetlichnaya

Writing

Boy in Park (uncredited)

Colin Campbell

Acting

Homeland Security (uncredited)

John Jillard Sr.

Acting

Detective (uncredited)

Vincent Riviezzo

Acting

Restaurant Patron (uncredited)

Gary Ayash

Acting