Jessica Chastain Beverly Marsh
Bill Skarsgård Pennywise
Finn Wolfhard Young Richie Tozier
James McAvoy Bill Denbrough
Sophia Lillis Young Beverly Marsh
Bill Hader Richie Tozier
James Ransone Eddie Kaspbrak
Stephen King Shopkeeper, Novel
Jess Weixler Audra Phillips
Jaeden Martell Young Bill Denbrough
Jake Weary Webby
Wyatt Oleff Young Stanley Uris
Ryan Kiera Armstrong Victoria Fuller
Javier Botet Hobo / The Witch
Andy Muschietti Director, Pharmacy Customer (uncredited)
Jackson Robert Scott Dead Georgie
Isaiah Mustafa Mike Hanlon
Peter Bogdanovich Peter - Director
Jack Dylan Grazer Young Eddie Kaspbrak
Barbara Muschietti Producer
Roberto Campanella Choreographer
Owen Teague Dead Hockstetter
Xavier Dolan Adrian Mellon
Jeremy Ray Taylor Young Ben Hanscom
Gary Dauberman Screenplay, Executive Producer
Jay Ryan Ben Hanscom
Luke Roessler Dean
Megan Charpentier Young Gretta
Thomas J. O'Connell ADR Mixer
Lisa Cromarty Shokopiwah Woman
Nicholas Hamilton Young Henry Bowers
Neil Crone Chief Borton
Seth Grahame-Smith Executive Producer
Roy Lee Producer
Joan Gregson Mrs. Kersh
Ari Cohen Stanley's Dad
Kiley May Shokopiwah Woman
Tom Woodruff Jr. Makeup Designer
Chosen Jacobs Young Mike Hanlon
Dean Stinchcombe First Assistant "A" Camera
Stephen Bogaert Alvin Marsh
Jason Fuchs Richie's Manager, Co-Producer
Janet Porter Richie's Mom
Andy Bean Stanley Uris
Juno Rinaldi Gretta
Teach Grant Henry Bowers
Peter S. Elliot Additional Editor
Alec Gillis Makeup Designer
Brandon Crane Big Guy
Rachel Archer Costumer
Bill R. Dean Supervising Sound Editor
Rich Delia Casting
Billy Merasty Shokopiwah Man
Randy K. Singer Foley Mixer
Kate Corbett Dean's Mom
Brooke Lyndon-Stanford Visual Effects Supervisor
Molly Atkinson Myra / Sonia Kaspbrak
Jake Sim Belch Huggins
Kelly Van der Burg Victoria's Mom
Will Beinbrink Tom
Rob Ramsay Meaner Nurse
Dan Lin Producer
Nancy Nugent Title Supervising Sound Editor
Richard Brener Executive Producer
Michael Keller Sound Re-Recording Mixer
Bruce Tanis Sound Effects Editor
Edie Inksetter Shouting Kid's Mom
Benjamin Wallfisch Original Music Composer
Stephanie Gorin Local Casting
Edward A. Queffelec Stunts
Sonia Maria Chirila Fishtank Girl
Joe Bostick Mr. Keene