Reparto:
James McAvoy - Kevin Wendell Crumb / Patricia / Dennis / Hedwig / The Beast / Barry / Heinrich / Jade / Ian / Mary Reynolds / Norma / Jalin / Kat / B. T. / Mr. Pritchard / Felida / Luke / Goddard / Samuel / Polly
Bruce Willis - David Dunn / The Overseer
Samuel L. Jackson - Elijah Price / Mr. Glass
Anya Taylor-Joy - Casey Cooke
Sarah Paulson - Dr. Ellie Staple
Spencer Treat Clark - Joseph Dunn
Charlayne Woodard - Mrs. Price
Luke Kirby - Pierce
Adam David Thompson - Daryl
M. Night Shyamalan - Jai
Security Guard
Shannon Destiny Ryan - Cheerleading Girl #1
Diana Silvers - Cheerleading Girl #2
Nina Wisner - Cheerleading Girl #3
Kyli Zion - Cheerleading Girl #4
Serge Didenko - Ronald
Powerful Young Man
Russell Posner - T
Skinny Camera Kid
Kimberly S. Fairbanks - Assistant Principal
Rosemary Howard - Penelope Crumb
Bryan McElroy - Clarence Crumb
Owen Vitullo - Young Kevin
William Turner - Young Elijah
Johnny Hiram Jamison - Thirteen Year-Old Elijah
Leslie Stefanson - Woman on Train
Marc H. Glick - Train Engineer
Brick Mason - Carnival Barker
Bostin Christopher - Comic Book Counter Guy
Ukee Washington - News Anchor
Colin Becker - Ten Year-Old David
Brian Anthony Wilson - Security Guard in Car
Tobias Segal - Surveillance Security Guard
Joseph Thuet - Joe
Security Guard
Tatiana St. Phard - Woman Group Member
Tom DiNardo - Homeless Person
Timothy Chivalette - Comic Book Geek #1
Jack McCafferty - Comic Book Geek #2
Darby Schlosser - Foster Sibling #1
Jordan Coker - Foster Sibling #2
Emma Hong - Foster Sibling #3
Xaiver Gerald - Foster Sibling #4
Tim Duquette - Patient Jimmy
Nathan Nauroth - Orderly Harrison
Ana Leonard - Hospital Volunteer