Cast
- Bill Skarsgård
- Pennywise
- Jaeden Lieberher
- Bill Denbrough
- Jeremy Ray Taylor
- Ben Hanscom
- Sophia Lillis
- Beverly Marsh
- Finn Wolfhard
- Richie Tozier
- Jack Dylan Grazer
- Eddie Kaspbrak
- Wyatt Oleff
- Stanley Iris
- Chosen Jacobs
- Mike Hanlon
- Nicholas Hamilton
- Henry Bowers
- Jackson Robert Scott
- Georgie
- Jake Sim
- Belch Huggins
- Logan Thompson
- Victor Criss
- Owen Teague
- Patrick Hockstetter
- Stephen Bogaert
- Mr. Marsh
- Stuart Hughes
- Officer Bowers
- Geoffrey Pounsett
- Zach Denbrough
- Pip Dwyer
- Sharon Denbrough
- Molly Jane Atkinson
- Sona 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 Nelisse
- Girl in Bathroom
- Jocelyn Mattka
- Another Girl
- Donald Tripe
- Old Man In Car
- Liz Gordon
- Old Woman In Car
- Paige Rosamond
- Dead Girl #1
- Neil Crone
- Chief Borton
- Sonia Gascon
- Mrs. Ripsom
- Janet Porter
- Stanley's Mother
- Memo Diaz Capt
- 4th Of July Clown
- Chantal Vachon
- Girl in Magazine
- Roberto Campanella
- Organ Player Clown, Choreography
Crew
- Andy Muschietti
- Director
- Aaron Dinsmore
- Special Effects
- Adam Bocknek
- Second Assistant Director
- Alec Gillis
- Makeup Special Effects
- Andrew Searle
- Special Effects
- Atomic Arts
- Visual Effects
- Barbara Muschietti
- Producer
- Benjamin Wallfisch
- Composer (Music Score)
- Brad Weiss
- Special Effects
- Brandt Gordon
- Art Director
- Cary Joji Fukunaga
- Screenwriter
- Chase Palmer
- Screenwriter
- Chris Jenkins
- Re-Recording Mixer
- Chung Chung-Hoon
- Cinematographer
- Claude Pare
- Production Designer
- Cubica
- Visual Effects
- Dan Bronson
- Costumes Supervisor
- Dan Lin
- Producer
- Dana Sano
- Musical Direction/Supervision
- Darin Read
- Post Production Supervisor
- Dave Neustadter
- Executive Producer
- David Katzenberg
- Producer
- Debra Manou
- Hair Styles
- Doug Davison
- Executive Producer
- Emily O'Quinn
- Makeup
- Gary Dauberman
- Screenwriter
- Gaynor Walterhouse
- Costumes Supervisor
- Glen Gauthier
- Sound Mixer
- Greg Jones
- Special Effects
- Hollywood Visual Effects
- Visual Effects
- Jamie Hardt
- Sound Effects Editor
- Jamie Jones
- Stunts Coordinator
- Janie Bryant
- Costume Designer
- Jason Ballantine
- Editor
- Jon Silk
- Executive Producer
- JR Kenny
- Special Effects
- Kelly Jones
- Stunts Coordinator
- Ken Johnson
- Sound Effects Editor
- Kris Fenske
- Sound Effects Editor
- Kristy Hollidge
- Special Effects
- Linda Dowds
- Department Head Makeup
- Make FX
- Visual Effects
- Marty P. Ewing
- Executive Producer, Unit Production Manager
- Marty P. Ewing
- Executive Producer, Unit Production Manager
- Michael Keller
- Re-Recording Mixer
- Nicholas Brooks
- Visual Effects Supervisor
- Niija Kuykendall
- Executive Producer
- Paul Hackner
- Sound/Sound Designer
- Penny Charter
- Second Assistant Director
- Peter Grundy
- Art Director
- Rich Delia
- Casting
- Richard Brener
- Executive Producer
- Richard Cowan
- First Assistant Director
- Robert Beal
- Sound Mixer
- Robert Warwick
- First Assistant Director
- Roberto Campanella
- Organ Player Clown, Choreography
- Robin M. Reelis
- Unit Production Manager
- Rodeo FX
- Visual Effects
- Rosalie Board
- Set Decorator
- Roy Lee
- Producer
- Sarah Craig-McEathron
- Department Head Makeup
- Seth Grahame-Smith
- Producer
- Sheila Pruden
- Costumes Supervisor
- Shuba Dasgupta
- Special Effects Coordinator
- Simon Board
- First Assistant Director
- Stephanie Gorin
- Casting
- Stephanie Ingram
- Department Head Hair
- Stephen King
- Book Author
- Sylvain Arseneault
- Sound Mixer
- Ted Ross
- Special Effects
- Toby Emmerich
- Executive Producer
- Tom Woodruff, Jr.
- Makeup Special Effects
- Travis McConnell
- First Assistant Director
- Valentin Pricop
- Sound Mixer
- Victor Ray Ennis
- Supervising Sound Editor
- Walter Hamada
- Executive Producer
- Warren Appleby
- Special Effects Supervisor