Bill Skarsgård Pennywise Jessica Chastain Beverly Marsh Bill Hader Richie Tozier James McAvoy Bill Denbrough Isaiah Mustafa Mike Hanlon Jay Ryan Ben Hanscom James Ransone Eddie Kaspbrak Andy Bean Stanley Uris Jaeden Martell Young Bill Denbrough Wyatt Oleff Young Stanley Uris Jack Dylan Grazer Young Eddie Kaspbrak Finn Wolfhard Young Richie Tozier Sophia Lillis Young Beverly Marsh Chosen Jacobs Young Mike Hanlon Jeremy Ray Taylor Young Ben Hanscom Teach Grant Henry Bowers Nicholas Hamilton Young Henry Bowers Javier Botet Hobo / The Witch Xavier Dolan Adrian Mellon Taylor Frey Don Hagarty Molly Atkinson Myra / Sonia Kaspbrak Joan Gregson Mrs. Kersh Stephen Bogaert Alvin Marsh Luke Roessler Dean Stephen King Shopkeeper Jess Weixler Audra Phillips Ryan Kiera Armstrong Victoria Fuller Joe Bostick Mr. Keene Owen Teague Dead Hocksstetter Amanda Zhou Waitress Lisa Cromarty Shokopiwah Woman Edie Inksetter Shouting Kid's Mom Liam MacDonald Dean's Friend