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James McAvoy - Dennis / Patricia / Hedwig / The Beast / Kevin Wendell Crumb / Barry / Orwell / JadeAnya Taylor-Joy - Casey CookeHaley Lu Richardson - Claire BenoitJessica Sula - MarciaBetty Buckley - Dr. Karen FletcherIzzie Coffey - Five-Year-Old CaseyBrad William Henke - Uncle JohnSebastian Arcelus - Casey's FatherNeal Huff - Mr. BenoitUkee Washington - News AnchorAnn Wood - Game Show EnthusiastRobert Michael Kelly - JoeM. Night Shyamalan - Jai, Hooters LoverRosemary Howard - Kevin's MotherJerome Gallman - Vince, Security GuardLyne Renee - Academic ModeratorKate Jacoby - Dr. Fletcher's PatientPeter Patrikios - Taxi DriverKash Goins - Flower Kiosk WorkerRoy James Wilson - Security Guy with DogChristopher Lee Philips - Older WorkerJulie Potter - ParamedicAmeerah Briggs - Police Officer #1Nakia Dillard - Police Officer #2Robin Rieger - Television ReporterEmlyn McFarland - Diner WaitressDann Fink - Game Show Contestant (voice)Bruce Winant - Game Show Host (voice)Bruce Willis - David Dunn (uncredited)Kim Director - Hannah (uncredited)
Ratings
from TMDB7.3/ 1018,737 votes