 | Olivia Cooke als Amanda |
 | Anya Taylor-Joy als Lily |
 | Anton Yelchin als Tim |
 | Paul Sparks als Mark |
 | Francie Swift als Cynthia |
 | Kaili Vernoff als Karen |
 | Alyssa Fishenden als Jessica |
 | Jackson Damon als Phil |
| James Haddad als Michael |
| Nolan Ball als Delivery Guy |
 | Celeste Oliva als Receptionist |
 | Stephanie Atkinson als Knitting Therapist (uncredited) |
| Lauren Laperriere als Mental Patient (uncredited) |
| Thomas Dings als Teenager (uncredited) |
 | Leah Procito als Doctor (uncredited) |
 | Alex Wolff als Party Friend (uncredited) |
| Xavier Dillingham als Party Goer (uncredited) |
| Jack Norton als Mental Patient (uncredited) |
| Daniel Martignetti als CT State Policeman (uncredited) |
| Cory Finley | Writer |
| Cory Finley | Director |
| Louise Ford | Editor |
| Jim Rash | Producer |
| Alex Bovaird | Costume Design |
| Stephanie Holbrook | Casting |
| Andrew Duncan | Producer |
| Nat Faxon | Producer |
| Alex Saks | Producer |
| Jeremy Woodward | Production Design |
| Douglas Aibel | Casting |
| Kevin J. Walsh | Producer |
| Erik Friedlander | Original Music Composer |
| Ryan Stowell | Executive Producer |
| Liz Bernstrom | Makeup Department Head |
| B. Ted Deiker | Unit Production Manager |
| B. Ted Deiker | Executive Producer |
| Declan Baldwin | Executive Producer |
| Dani Johnson | Associate Producer |
| Kyra Friedman Curcio | Set Decoration |
| Lyle Vincent | Director of Photography |
| Leah Taylor Roy | Co-Producer |
| Anton Yelchin | In Memory Of |
| Susan Jacobs | Music Supervisor |
| Tina Haveles | Second Assistant Director |
| Michael T. Meador | First Assistant Director |
| Frank Barbosa | Hair Department Head |
| Stuart Macphee | Post Production Supervisor |
| Megan Blake | Graphic Designer |
| Morgan Kling | Property Master |
| Keenan McCarthy | Storyboard Artist |
| Alix Metros | Art Department Coordinator |
| Bill Orrico | Dialogue Editor |
| Roland Vajs | Sound Designer |
| Paul Marini | Stunt Coordinator |
| Jonathan Beattie | Camera Operator |
| Joshua Dreyfus | Gaffer |
| Tim Driscoll | Key Grip |
| Claire Folger | Still Photographer |
| Ben Heald | Dolly Grip |
| Tina Ulee | Wardrobe Supervisor |
| Morgan Wajda-Levie | Assistant Editor |
| Jackie Mulhearn | Music Coordinator |
| Aidan Payne | Script Supervisor |
| Gene Park | Supervising Sound Editor |
| Peter Stevenson | Boom Operator |
| Billy Dowd | Extras Casting |
| Matt Bouldry | Casting Associate |
| Oliver Amerigian | Location Manager |
| Nolan Ball | First Assistant Camera |
| Jason Brignola | Second Assistant Camera |
| Timothy Lewis | Leadman |
| Rebekah Hernandez | Post Production Coordinator |
| Leslie Bloome | Foley Artist |
| Ryan Collison | Foley Mixer |
| Joanna Fang | Foley Artist |
| Nick Seaman | Foley Recordist |
| Suzana Peric | Music Editor |
| Christopher Analoro | Set Dresser |
| Risa Uchida Battis | Set Dresser |
| Mickey Carter | Set Dresser |
| Jarrett Staaf | Set Dresser |
| Ric Schnupp | Foley Editor |
| Ric Schnupp | Sound Effects Editor |
| Meg Bailey | Visual Effects Producer |
| Brian Drewes | Visual Effects Producer |
| Daniel Hourihan | Electrician |
| Colleen Kelly | Stand In |
