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