Bill Hader

Richie Tozier

Jeremy Ray Taylor

Young Ben Hanscom

James McAvoy

Bill Denbrough

Jessica Chastain

Beverly Marsh

Jack Dylan Grazer

Young Eddie Kaspbrak

Finn Wolfhard

Young Richie Tozier

Richard Brener

Executive Producer

Seth Grahame-Smith

Executive Producer

Dave Neustadter

Executive Producer

Marty P. Ewing

Executive Producer

Joan Gregson

Mrs. Kersh

Sophia Lillis

Young Beverly Marsh

Javier Botet

Hobo / The Witch

Bill Skarsgård

Pennywise

James Ransone

Eddie Kaspbrak

Teach Grant

Henry Bowers

Andy Muschietti

Director

Gary Dauberman

Executive Producer

Jaeden Martell

Young Bill Denbrough

Andy Bean

Stanley Uris

Chosen Jacobs

Young Mike Hanlon

Wyatt Oleff

Young Stanley Uris

Nicholas Hamilton

Young Henry Bowers

Stephen Bogaert

Alvin Marsh

Molly Atkinson

Myra / Sonia Kaspbrak

Xavier Dolan

Adrian Mellon

Isaiah Mustafa

Mike Hanlon

Jay Ryan

Ben Hanscom

Taylor Frey

Don Hagarty

Luke Roessler

Dean

David Katzenberg

Executive Producer