 | Millie Bobby Brown als Michelle |
 | Chris Pratt |
 | Brian Cox |
 | Stanley Tucci |
 | Jenny Slate |
 | Jason Alexander |
 | Woody Norman als Christopher |
 | Giancarlo Esposito als Marshall |
 | Ke Huy Quan |
 | Anthony Mackie |
 | Billy Bob Thornton |
 | Katelin Chesna als Hospital Doctor |
 | Martin Klebba als Herman |
 | Adam Croasdell als Marshall |
 | Terry Notary |
 | Cuyle Carvin |
 | Gabrielle Maiden als Penny Pal |
 | Joe Avena als President Clinton |
| Sebastian Soler als Orderly |
| Joe Russo | Director |
| Anthony Russo | Director |
| Russell Ackerman | Executive Producer |
| Andy Muschietti | Producer |
| Bárbara Muschietti | Producer |
| Simon Stålenhag | Novel |
| Christopher Markus | Screenplay |
| Stephen McFeely | Screenplay |
| Joe Russo | Producer |
| Anthony Russo | Producer |
| Mike LaRocca | Producer |
| John Schoenfelder | Executive Producer |
| Stephen F. Windon | Director of Photography |
| Caitlin Dechelle | Stunts |
| Michelle Andrea Adams | Stunts |
