cast
-
James McAvoy
Dennis / Patricia / Hedwig / The Beast / Kevin Wendell Crumb / Barry / Orwell / Jade
-
Anya Taylor-Joy
Casey Cooke
-
Haley Lu Richardson
Claire Benoit
-
Jessica Sula
Marcia
-
Betty Buckley
Dr. Karen Fletcher
-
Izzie Coffey
Five-Year-Old Casey
-
Brad William Henke
Uncle John
-
Sebastian Arcelus
Casey's Father
-
Neal Huff
Mr. Benoit
-
Ukee Washington
News Anchor
- Ann Wood Game Show Enthusiast
- Robert Michael Kelly Joe
-
M. Night Shyamalan
Jai, Hooters Lover
-
Rosemary Howard
Kevin's Mother
- Jerome Gallman Vince, Security Guard
-
Lyne Renee
Academic Moderator
- Kate Jacoby Dr. Fletcher's Patient
-
Peter Patrikios
Taxi Driver
-
Kash Goins
Flower Kiosk Worker
-
Roy James Wilson
Security Guy with Dog
-
Christopher Lee Philips
Older Worker
- Julie Potter Paramedic
-
Ameerah Briggs
Police Officer #1
-
Nakia Dillard
Police Officer #2
-
Robin Rieger
Television Reporter
-
Emlyn McFarland
Diner Waitress
-
Dann Fink
Game Show Contestant (voice)
-
Bruce Winant
Game Show Host (voice)
-
Bruce Willis
David Dunn (uncredited)
-
Kim Director
Hannah (uncredited)
-
Robert Bizik
Bar Patron (uncredited)
- Junnie Lopez Geraldo (uncredited)
- Steven Dennis Dan at Next Table (uncredited)
- Matthew Nadu Waiter (uncredited)
- James Robinson Jr. Claire's Party Guest (uncredited)
- John Mitchell EMT (uncredited)
- Aleksandra Svetlichnaya Pedestrian (uncredited)
- Colin Campbell Boy in Park (uncredited)
- John Jillard Sr. Homeland Security (uncredited)
-
Vincent Riviezzo
Detective (uncredited)
-
Gary Ayash
Restaurant Patron (uncredited)