Jaeden Martell Bill Denbrough Sophia Lillis Beverly Marsh Bill Skarsgård Pennywise Finn Wolfhard Richie Tozier Jack Dylan Grazer Eddie Kaspbrak Jeremy Ray Taylor Ben Hanscom Chosen Jacobs Mike Hanlon Wyatt Oleff Stanley Uris Nicholas Hamilton Henry Bowers Stephen Bogaert Mr. Marsh Jackson Robert Scott Georgie Denbrough Stuart Hughes Officer Bowers Owen Teague Patrick Hockstetter Molly Atkinson Sonia Kasprak Jake Sim Belch Huggins Logan Thompson Victor Criss Katie Lunman Betty Ripsom Geoffrey Pounsett Zach Denbrough Pip Dwyer Sharon Denbrough 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 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 Roberto Campanella Organ Player Clown Kate Moyer Esther (uncredited) Sherry Nelson Woman on Street (uncredited) Jimmy Star Man in Car (uncredited) Kelly Van der Burg Abigail (uncredited)