 | Taylor Schilling als Sarah Blume |
 | Jackson Robert Scott als Miles Blume |
 | Colm Feore als Arthur Jacobson |
 | Brittany Allen als Margaret St. James |
 | Peter Mooney als John Blume |
 | Oluniké Adeliyi als Rebecca |
 | Elisa Moolecherry als Zoe |
 | Paula Boudreau als Dr. Elaine Strasser |
 | Paul Fauteux als Edward Scarka |
 | David Kohlsmith als Miles (5 Years Old) |
 | Ashley Black als Hailey |
 | Martha Girvin als Miles' Foster Mom |
| Andrew MacDonald als Miles (8 Years Old) |
| Alexander Campos als Miles (2 Years Old) |
| Chris Scian als Christopher |
 | Ava Augustin als Penmark Student |
| Olivia Croft als CPS Officer |
 | Mark Sparks als Lead Officer |
 | Michael Dyson als Farmer |
 | Brock Johnson als Pawn Shop Owner |
 | Grace Armas als Exam Room Nurse |
 | Milton Barnes als Intensive Care Doctor |
 | Jim Annan als Buchanan Teacher |
| Tristan Vasquez als Dash |
 | Byron Abalos als Penmark Instructor |
 | Martin Roach als Dr. Kagan |
 | Janet Land als Sarah's Mother |
| Nicholas McCarthy als Penmark supervisor |
| Nicholas McCarthy | Director |
| Tripp Vinson | Producer |
| Nick Spicer | Executive Producer |
| Jeff Buhler | Executive Producer |
| Lisa Zambri | Executive Producer |
| Daniel Bekerman | Producer |
| Aidan Leroux | Production Design |
| Catherine Ashton | Costume Design |
| Joseph Bishara | Original Music Composer |
| Brian Ufberg | Editor |
| Tom Elkins | Editor |
| Jeff Buhler | Screenplay |
| Deanna Brigidi | Casting |
| John Buchan | Casting |
| Jason Knight | Casting |
| Shayne Fox | Set Decoration |
| Kayla Dobilas | Special Effects Makeup Artist |
| Neil Morrill | Special Effects Makeup Artist |
| Jordan Samuel | Makeup Department Head |
| Kristin Wayne | Key Makeup Artist |
| Steve Newburn | Prosthetic Makeup Artist |
| Sue Parker | Stunt Driver |
| Joanne McGuire | Stunts |
| Melissa Kelly | Stunts |
| Stephannie Hawkins | Stunts |
| Shelley Cook | Stunt Coordinator |
| Daniel Bekerman | Executive Producer |
| Ethan Lazar | Co-Producer |
| Tara Farney | Co-Producer |
| Ashley Shields-Muir | Unit Production Manager |
| Joel Hay | First Assistant Director |
| Richard Black | Second Assistant Director |
| Billy Oliver | Stunt Double |
| Melissa Kelly | Stunt Double |
| Joel Richardson | Art Direction |
| Stephanie Wyman | Graphic Designer |
| Alder Dunlap | Assistant Art Director |
| Gergely König-Kapus | Storyboard Artist |
| Davin Snip | Property Master |
| Sue Yuzwak | Property Buyer |
| Andri Gianakakis | Leadman |
| Judi Stackaruk | Leadman |
| Kwame Benjamin | Set Dresser |
| Jay Williams | Set Dresser |
| Austen Drysdale | Set Dresser |
| Michael Soos | Steadicam Operator |
| JP Locherer | "B" Camera Operator |
| Mark Hroch | "B" Camera Operator |
| Roman M. Neubacher | First Assistant Camera |
| Andrew Macklin | First Assistant Camera |
| Michael Purdon | First Assistant Camera |
| Chris Howell | First Assistant Camera |
| Matthew Bedard | Second Assistant Camera |
| Courtney Graham | Second Assistant Camera |
| Claudia Monteza | Second Assistant Camera |
| Sarah Lollar | Digital Imaging Technician |
| Robert Murdoch | Camera Trainee |
| Amy Cuthbertson | Production Coordinator |
| Mark S. Foster | Assistant Production Coordinator |
| Paul Gosse | Production Sound Mixer |
| Dorian Williamson | Boom Operator |
| Randy Brown | Gaffer |
| Nicholas Porter | Best Boy Electric |
| Stewart Wells | Electrician |
| John Belliveau | Electrician |
| Mitch Holmes | Key Grip |
| Ryan Hunter | Best Boy Grip |
| Robin Lopes | Dolly Grip |
| Rob Somers | Grip |
| Tim Barraball | Special Effects Coordinator |
| Chris J. O'Neil | Assistant Costume Designer |
| Jeff Dineen | Costume Set Supervisor |
| Karen Meluck | Costume Supervisor |
| Paul R.J. Elliot | Key Hair Stylist |
| Cathy Shibley | Hairstylist |
| Jeff Brownell | Second Unit Director |
| Anthony Scott Burns | Second Unit Director |
| Nadia Guglieri | Script Supervisor |
| Glenn Carter | Location Manager |
| Justin Cossette | Assistant Location Manager |
| Kevin Persaud | Assistant Location Manager |
| Alex Makrygiannis | Location Scout |
| Neil Olsen | Production Accountant |
| Byron Ingram | Third Assistant Director |
| Andrea Eisen | Studio Teacher |
| Ashley Marks | Casting Associate |
| Alexandra Presas | Casting Associate |
| Stephanie Bleakley | Casting Associate |
| Roisin McGilly | Extras Casting |
| Mario Tassone | Unit Publicist |
| Rafy | Still Photographer |
| Ted Hill | Construction Coordinator |
| Jesse Balzan | Carpenter |
| Anne Metheany | Paint Coordinator |
| Don Retzer | Transportation Coordinator |
| Adam Crawford | Transportation Captain |
| Travis Gowland | Set Medic |
| Jasmine Kosovic | Post Production Supervisor |
| Davis Reynolds | Assistant Editor |
| Peggy Eghbalian | Assistant Editor |
| Marti D. Humphrey | Sound Re-Recording Mixer |
| Jussi Tegelman | Sound Re-Recording Mixer |
| Jussi Tegelman | Sound Designer |
| Justin W. Walker | Dialogue Editor |
| Justin W. Walker | ADR Editor |
| Jonathan Bruce | Foley |
| Amy Barber | Foley |
| Adam Carl | Sound Recordist |
| David A. Cobb | Sound Recordist |
| Dan Wilcox | Music Supervisor |
| Edward Taylor IV | Visual Effects Supervisor |
| Robin Nozetz | Visual Effects Producer |
| Chris Costello | Visual Effects Editor |
| Kathryn Foster | Visual Effects Editor |
| Liam Macdonald | Visual Effects Coordinator |
| Bridger Nielson | Director of Photography |
