 | Allison Williams als Gemma |
 | Violet McGraw als Cady |
 | Ronny Chieng als David Lin |
 | Amie Donald als M3GAN |
 | Jenna Davis als M3GAN (voice) |
 | Brian Jordan Alvarez als Cole |
 | Jen Van Epps als Tess |
 | Stephane Garneau-Monten als Kurt |
 | Lori Dungey als Celia |
 | Amy Usherwood als Lydia |
 | Jack Cassidy als Brandon |
 | Michael Saccente als Greg |
 | Samson Chan-Boon als Officer Carter |
 | Kira Josephson als Ava |
 | Renee Lyons als Holly |
 | Millen Baird als Police Detective |
 | Chelsie Preston Crayford als Nicole |
 | Arlo Green als Ryan |
 | Natasha Daniel als Shelley |
 | Jaya Beach-Robertson als Screaming Woman |
| Cameron Randell als Purrpetual Petz Daughter |
| Clinton Randell als Purrpetual Petz Father |
| Marley Sharpe als Purrpetual Petz Friend |
| Coco Poole als Furzees Dancer |
| Mila Leith als Furzees Dancer |
| Ruby Qereqeretabua als Furzees Dancer |
| Gerard Johnstone | Director |
| Michael Clear | Executive Producer |
| Judson Scott | Executive Producer |
| James Wan | Producer |
| Jason Blum | Producer |
| James Wan | Story |
| Peter McCaffrey | Director of Photography |
| Kim Sinclair | Production Design |
| Allison Williams | Executive Producer |
| Mark David Katchur | Executive Producer |
| Ryan Turek | Executive Producer |
| Adam Hendricks | Executive Producer |
| Greg Gilreath | Executive Producer |
| Vanessa Cole | Set Decoration |
| Sean Keenan | Set Decoration |
| Ben Milsom | Art Direction |
| Daniel Cruden | Costume Designer |
| Sarah Domeier Lindo | Casting |
| Miranda Rivers | Casting |
| Terri Taylor | Casting |
| Mark David Katchur | Unit Production Manager |
| Stefan Knight | Makeup Department Head |
| Joe Nolan | First Assistant Director |
| Esther Collas | Third Assistant Director |
| Jessica Blennerhassett | Third Assistant Director |
| Charlie Elson | Second Second Assistant Director |
| Stephen W. Moore | First Assistant Director |
| Sarah-Joy Lawrence | Costume Assistant |
| Akela Cooper | Story |
| Electra Sinclair | Assistant Art Director |
| Kyle Arzt | Sound Re-Recording Mixer |
| Christopher Bonis | Sound Effects Editor |
| Joel Dougherty | Sound Re-Recording Mixer |
| P.K. Hooker | Supervising Sound Editor |
| P.K. Hooker | Sound Designer |
| James Miller | Sound Editor |
| Ryan A. Sullivan | Sound Effects Editor |
| Akela Cooper | Screenplay |
| Jeff McEvoy | Editor |
| Luana Millar | Makeup Artist |
| Shannon Sinton | Makeup Artist |
| Imma Tombleson | Makeup Artist |
| Hayden Washington-Smith | Utility Sound |
| Noel Vought | Foley Artist |
| Jordan Smith | ADR Mixer |
| Jeffrey Roy | ADR Mixer |
| Jamison Rabbe | ADR Mixer |
| Angelo Palazzo | Sound Effects Editor |
| Nick Neutra | Foley Supervisor |
| Samuel Múñoz | Foley Editor |
| Michael Miller | ADR Mixer |
| Jacob McNaughton | Foley Mixer |
| Eileen Horta | Dialogue Editor |
| Fred Enholmer | Production Sound Mixer |
| Jesse Dodd | ADR Mixer |
| Smokey Cloud | First Assistant Sound Editor |
| Patrick Christensen | ADR Mixer |
| Sven Harens | Special Effects Supervisor |
| Ainsley Allen | Visual Effects Producer |
| Melissa Brockman | Visual Effects Producer |
| Jonathan Dearing | Visual Effects Supervisor |
| Rhys Dippie | Visual Effects Supervisor |
| Damon Duncan | Visual Effects Supervisor |
| Chris Elson | Visual Effects Supervisor |
| Emily Fay Higgins | Visual Effects Producer |
| Mary Manchin | Visual Effects Coordinator |
| Drew Sacks | Visual Effects Editor |
| Ashlee Fidow | Stunt Double |
| Shaney Greetham | Stunt Double |
| Isaac Hamon | Stunt Coordinator |
| Kyran Van Asch | Stunt Double |
| Nat Brunt | First Assistant "A" Camera |
| Giles Coburn | Gaffer |
| Richard Elworthy | First Assistant "B" Camera |
| Rowena Simes | Second Assistant "B" Camera |
| Jake Stanton | First Assistant Camera |
| Geoffrey Short | Still Photographer |
| Jaime Striby | Additional Photography |
| Andrew Stroud | Additional Photography |
| Niki Winer | First Assistant Camera |
| Cecilie Bridgford | Costumer |
| Jennifer Scudder Trent | Co-Producer |
| amy wood | Key Hair Stylist |
| Jacqui Leung | Makeup Supervisor |
| Jacqui Leung | Hair Supervisor |
| Vanessa Jenkins | Hairstylist |
| Adrien Morot | Special Effects Makeup Artist |
| Michael Mosher | Key Makeup Artist |
| Manny Lemus | Prosthetics |
| Kathy Tse | Special Effects Makeup Artist |
| Vague Vartanian | Special Effects Makeup Artist |
| Sven Harens | Special Effects |
| Jonny McBride | Stunts |
| Daniel Andrews | Stunts |
| Elodie Pretorius | Stunts |
| Lex D. Geddings | Stunt Coordinator |
| Simon Raby | Second Unit Director of Photography |
| Andrew McGeorge | Second Unit Director of Photography |
| Lyn Moncrief | Second Unit Director of Photography |
| Dianne Foothead | Costume Supervisor |
| Andrea von Foerster | Music Supervisor |
| Jeremy Hanna | Concept Artist |
| Sanchia Reed | Hairstylist |
| Sanchia Reed | Makeup Artist |
| Stephan Ashdown | Special Effects Makeup Artist |
| Guy Campbell | Second Assistant Director |
| Melissa Lawrence | Script Supervisor |
| Clare Cunningham | Script Supervisor |
| Ida Munro | Costume Standby |
| Judson Scott | Executive Producer |
| Anthony B. Willis | Original Music Composer |
