 | Lewis Pullman als Ben Mears |
 | Alfre Woodard als Dr. Cody |
 | Makenzie Leigh als Susan Norton |
 | Bill Camp als Matthew Burke |
 | Spencer Treat Clark als Mike Ryerson |
 | Pilou Asbæk als Richard Straker |
 | John Benjamin Hickey als Father Callahan |
 | William Sadler als Kurt Barlow |
 | Jordan Preston Carter als Mark Petrie |
 | Nicholas Crovetti als Danny Glick |
 | Cade Woodward als Ralph Glick |
 | Kellan Rhude als Floyd Tibbits |
 | Debra Christofferson als Anne Norton |
 | Rebecca Gibel als Mabel Wertz |
 | Mike Bash als Officer Taylor |
 | Fedna Jacquet als June Petrie |
 | Avery Bederman als Ruthie Crockett |
| Liam Anderson als Pirate Hat |
 | Marilyn Busch als Eva Miller |
| Sage Rudnick als Becky |
| Alyana Hill als Student |
| Gavin Maddox Bergman als Young Ben Mears |
| Robert Bouvier als So Called Friend |
| Daniel George als Elementary School Student |
| Gary Dauberman | Executive Producer |
| Roy Lee | Producer |
| Gary Dauberman | Screenplay |
| James Wan | Producer |
| Stephen King | Novel |
| Gary Dauberman | Director |
| Michael Clear | Producer |
| Mark Wolper | Producer |
| Michael Bederman | Executive Producer |
| Judson Scott | Executive Producer |
| Andrew Childs | Executive Producer |
| Michael Burgess | Director of Photography |
| Preston Mohr | Visual Effects Coordinator |
| Marc Fisichella | Production Design |
| Paul Richards | Art Direction |
| Carl Sprague | Art Direction |
| Jennifer Engel | Set Decoration |
| Virginia B. Johnson | Costume Design |
| Melinda Abreu | Makeup Artist |
| Ozzy Alvarez | Special Effects Makeup Artist |
| Kelsey Berk | Special Effects Key Makeup Artist |
| Margina Dennis | Makeup Artist |
| Paula Dion | Hairstylist |
| Jennifer Douglas | Hairstylist |
| Marissa Haley | Makeup Artist |
| Garrett Immel | Special Effects Makeup Artist |
| Julie LeShane | Key Makeup Artist |
| Nicki Harris | Contact Lens Technician |
| Diana Hansen | Contact Lens Technician |
| Ashley Levy | Makeup Artist |
| Conor McCullagh | Special Effects Makeup Artist |
| Brenda McNally | Assistant Hairstylist |
| Jason Renner | Key Hair Stylist |
| Zachary Ripps | Contact Lens Technician |
| Eleanor Sabaduquia | Makeup Department Head |
| Jon Shroyer | Special Effects Makeup Artist |
| Clinton Wayne | Special Effects Makeup Artist |
| Michael White | Hair Department Head |
| Meghan Guilfoyle | Set Decorating Coordinator |
| Anthony Raymond | Set Designer |
| Walter Schneider | Conceptual Illustrator |
| Brad Towell | Graphic Designer |
| Jason Mayoh | Graphic Designer |
| Daniel Carrasco | Creature Design |
| Kim Codner | Scenic Artist |
| Daniel J. Courchaine | Scenic Artist |
| Darrin Denlinger | Storyboard Artist |
| Matthew Bouchard | Special Effects Technician |
| Jason Coffey | Special Effects Technician |
| Mikayla Labbe | Special Effects Technician |
| Juliana Lima | Special Effects Technician |
| Ralph Wilber III | Special Effects Technician |
| Douglas D. Ziegler | Special Effects Supervisor |
| John Ruggieri | Pyrotechnician |
| Irene Armit | Visual Effects Producer |
| Jessica Chamberlin | Visual Effects Supervisor |
| Sean Kachenmeister | Visual Effects Editor |
| Brandon Nelson | Visual Effects Supervisor |
| Matthew Steeves | Visual Effects Editor |
| Heather Taylor | Visual Effects Editor |
| Jeff Winkle | Visual Effects Producer |
| Shawnna Thibodeau | Stunts |
| Leigha Hancock | Stunts |
| Brett Duffy | Extras Casting |
