Jaeden Martell

Bill Denbrough

Jeremy Ray Taylor

Ben Hanscom

Sophia Lillis

Beverly Marsh

Finn Wolfhard

Richie Tozier

Chosen Jacobs

Mike Hanlon

Jack Dylan Grazer

Eddie Kaspbrak

Wyatt Oleff

Stanley Uris

Bill Skarsgård

Pennywise

Nicholas Hamilton

Henry Bowers

Jake Sim

Belch Huggins

Logan Thompson

Victor Criss

Owen Teague

Patrick Hockstetter

Jackson Robert Scott

Georgie Denbrough

Stephen Bogaert

Mr. Marsh

Stuart Hughes

Officer Bowers

Geoffrey Pounsett

Zach Denbrough

Pip Dwyer

Sharon Denbrough

Molly Atkinson

Sonia Kaspbrak

Steven Williams

Leroy Hanlon

Elizabeth Saunders

Mrs. Starret

Megan Charpentier

Gretta

Joe Bostick

Mr. Keene

Ari Cohen

Rabbi Uris

Anthony Ulc

Joe the Butcher

Javier Botet

Hobo

Katie Lunman

Betty Ripsom

Carter Musselman

Headless Boy

Tatum Lee

Judith

Edie Inksetter

Hostess

Martha Gibson

Old Woman

Kasie Rayner

Field Hockey Girl #1

Isabelle Nélisse

Girl in Bathroom

Neil Crone

Chief Borton

Sonia Gascón

Mrs. Ripsom

Janet Porter

Stanley's Mother

Chantal Vachon

Girl in Magazine

Roberto Campanella

Organ Player Clown

Bobby Leigh

Jonathan (uncredited)

Kate Moyer

Esther (uncredited)

Jimmy Star

Man in Car (uncredited)

Kelly Van der Burg

Abigail (uncredited)

Enzo Dannemann

Georgie Denbrough (brazilian Voice)