James McAvoy

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

M. Night Shyamalan

Jai, Hooters Lover

Director

Brad William Henke

Uncle John

Betty Buckley

Dr. Karen Fletcher

Neal Huff

Mr. Benoit

Sebastian Arcelus

Casey's Father

Rosemary Howard

Kevin's Mother

Robert Michael Kelly

Joe

Jessica Sula

Marcia

Haley Lu Richardson

Claire Benoit

Anya Taylor-Joy

Casey Cooke

Izzie Coffey

Five-Year-Old Casey

Ukee Washington

News Anchor

Ann Wood

Game Show Enthusiast

Jerome Gallman

Vince, Security Guard