Jaeden Martell

Character: Bill Denbrough

Jeremy Ray Taylor

Character: Ben Hanscom

Sophia Lillis

Character: Beverly Marsh

Finn Wolfhard

Character: Richie Tozier

Chosen Jacobs

Character: Mike Hanlon

Jack Dylan Grazer

Character: Eddie Kaspbrak

Wyatt Oleff

Character: Stanley Uris

Bill Skarsgård

Character: Pennywise

Nicholas Hamilton

Character: Henry Bowers

Jake Sim

Character: Belch Huggins

Logan Thompson

Character: Victor Criss

Owen Teague

Character: Patrick Hockstetter

Jackson Robert Scott

Character: Georgie Denbrough

Stephen Bogaert

Character: Mr. Marsh

Stuart Hughes

Character: Officer Bowers

Geoffrey Pounsett

Character: Zach Denbrough

Pip Dwyer

Character: Sharon Denbrough

Molly Atkinson

Character: Sonia Kaspbrak

Steven Williams

Character: Leroy Hanlon

Elizabeth Saunders

Character: Mrs. Starret

Megan Charpentier

Character: Gretta

Joe Bostick

Character: Mr. Keene

Ari Cohen

Character: Rabbi Uris

Anthony Ulc

Character: Joe the Butcher

Javier Botet

Character: Hobo

Katie Lunman

Character: Betty Ripsom

Carter Musselman

Character: Headless Boy

Tatum Lee

Character: Judith

Edie Inksetter

Character: Hostess

Martha Gibson

Character: Old Woman

Kasie Rayner

Character: Field Hockey Girl #1

Isabelle Nélisse

Character: Girl in Bathroom

Jocelyn Mattka

Character: Another Girl

Donald Tripe

Character: Old Man in Car

Liz Gordon

Character: Old Woman in Car

Paige Rosamond

Character: Dead Girl #1

Neil Crone

Character: Chief Borton

Sonia Gascón

Character: Mrs. Ripsom

Janet Porter

Character: Stanley's Mother

Memo Díaz Capt.

Character: 4th of July Clown

Chantal Vachon

Character: Girl in Magazine

Roberto Campanella

Character: Organ Player Clown

David Katzenberg

Character: El Aparato (uncredited)

Bobby Leigh

Character: Jonathan (uncredited)

Kate Moyer

Character: Esther (uncredited)

Jimmy Star

Character: Man in Car (uncredited)

Kelly Van der Burg

Character: Abigail (uncredited)

James Magwood

Character: Student (uncredited)