 | Leah Lewis als Ember Lumen (voice) |
 | Mamoudou Athie als Wade Ripple (voice) |
 | Ronnie del Carmen als Bernie Lumen (voice) |
 | Shila Ommi als Cinder Lumen (voice) |
 | Wendi McLendon-Covey als Gale (voice) |
 | Catherine O'Hara als Brook Ripple (voice) |
 | Mason Wertheimer als Clod (voice) |
 | Ronobir Lahiri als Harold (voice) |
 | Wilma Bonet als Flarrietta (voice) |
 | Joe Pera als Fern Grouchwood (voice) |
 | Matthew Yang King als Alan / Lutz / Earth Pruner (voice) |
| Clara Lin Ding als Little Kid Ember (voice) |
 | Reagan To als Big Kid Ember (voice) |
| Jeff Lapensee als Sparkler Customer (voice) |
| Ben Morris als Wood Immigration Official (voice) |
 | Alex Kapp als Customer / Delivery Person / Earth Landlord (voice) |
 | P.L. Brown als Doorman (voice) |
 | Jonathan Adams als Flarry (voice) |
| Peter Sohn | Director |
| Denise Ream | Producer |
| Pete Docter | Executive Producer |
| Thomas Newman | Original Music Composer |
| John Hoberg | Screenplay |
| Kat Likkel | Screenplay |
| Brenda Hsueh | Screenplay |
| John Hoberg | Story |
| Kat Likkel | Story |
| Brenda Hsueh | Story |
| Peter Sohn | Story |
| Don Shank | Production Design |
| Sanjay Bakshi | Visual Effects Supervisor |
| Stephen Marshall | Effects Supervisor |
| Allison Rutland | Animation Director |
| Ralph Eggleston | In Memory Of |
| Stephen Schaffer | Editor |
| David Juan Bianchi | Director of Photography |
| Jean-Claude Kalache | Director of Photography |
| Jason Katz | Story Supervisor |
| Michael Venturini | Animation Supervisor |
| Kureha Yokoo | Animation Supervisor |
| Thomas Gonzales | In Memory Of |
| Amber Rudolph | In Memory Of |
| J. Garett Sheldrew | In Memory Of |
| Thomas Newman | Conductor |
| Ren Klyce | Sound Designer |
| Jon Reisch | Effects Supervisor |
| Kevin Reher | Casting |
| Dylan Buccieri | ADR & Dubbing |
| Assaf Cohen | ADR & Dubbing |
| Jessica DiCicco | ADR & Dubbing |
| Terri Douglas | ADR & Dubbing |
| Innocent Ekakitie | ADR & Dubbing |
| Krysta Gonzales | ADR & Dubbing |
| Kai Ava Hauser | ADR & Dubbing |
| Karen Huie | ADR & Dubbing |
| Arif S. Kinchen | ADR & Dubbing |
| Austin Madison | ADR & Dubbing |
| Cole Massie | ADR & Dubbing |
| Scott Menville | ADR & Dubbing |
| Alisha Mullally | ADR & Dubbing |
| Fred Tatasciore | ADR & Dubbing |
| Maya Tuttle | ADR & Dubbing |
| Kari Wahlgren | ADR & Dubbing |
| Secunda Wood | ADR & Dubbing |
| Lexi Diamond | ADR Coordinator |
| Natalie Lyon | Casting |
| Cari Reiche | Animation |
| Cara Brody | Script Supervisor |
| Cathleen Carmean | Animation Supervisor |
| McKenna Jean Harris | Associate Producer |
| Le Tang | Story Artist |
| Ben Morris | First Assistant Editor |
| Jahkeeli Garnett | Layout Supervisor |
| John Legrande | Animation Technical Director |
| Dave Strick | Character Modelling Supervisor |
| Raymond Wong | Modelling Supervisor |
| Arnold Moon | Animation Technical Director |
| Amy Rae Jones | Lighting Supervisor |
| Luke Martorelli | Lighting Supervisor |
| Rebecca Euphrat | Animation |
| Heather Eisner | Post Production Supervisor |
| Coya Elliott | Supervising Sound Editor |
| Ren Klyce | Supervising Sound Editor |
| Shinnosuke Miyazawa | Music Editor |
| Matt Walker | Executive Music Producer |
| Jacob Brooks | Thanks |
| Kevin Chun | Thanks |
| Heikki Kossi | Foley Artist |
