Fifteen years ago, five men were abducted by aliens. Only four returned. Now, these same four men have managed to capture one of the creatures who killed their friend and ruined their lives.
Unfortunately the movie Altered is not yet available on HBO Max.
| Writing | Jamie Nash | Screenplay |
| Directing | Eduardo Sánchez | Director |
| Production | Robin Cowie | Producer |
| Production | Gregg Hale | Producer |
| Costume & Make-Up | Emily Harris | Costume Design |
| Production | Linda Phillips-Palo | Casting |
| Editing | Michael Cronin | Editor |
| Art | Andrew White | Production Design |
| Art | Christian Gueverra | Art Direction |
| Crew | Paul Mathews | Scenic Artist |
| Camera | Kevin Lang | Additional Photography |
| Crew | Rich Swim | Property Master |
| Sound | Robert Shoup | Supervising Sound Editor |
| Sound | David C. Hughes | Sound Designer |
| Sound | Mark Berger | Sound Re-Recording Mixer |
| Sound | Gene Radzik | Dolby Consultant |
| Crew | James L. Roberts | Special Effects Coordinator |
| Art | Bret Kane | Leadman |
| Sound | Tim Nielsen | Sound Designer |
| Visual Effects | Chet Zar | Visual Effects Supervisor |
| Crew | Jennifer Badger | Stunt Coordinator |
| Camera | Gene Page | Still Photographer |
| Camera | Stephen Campbell | Camera Operator |
| Lighting | Ama MacDonald | Gaffer |
| Directing | Brigan Gresh | Script Supervisor |
| Camera | Bob Scott | Additional Camera |
| Directing | Donald Dowd | Assistant Director |
| Camera | Steve Yedlin | Director of Photography |
| Costume & Make-Up | Deborah Brozovich | Hairstylist |
| Art | Martha Mae Tucker | Props |
| Costume & Make-Up | Lee Grimes | Key Makeup Artist |
| Crew | Dan Stewart | Carpenter |
| Art | Eric Baker | Props |
| Costume & Make-Up | Kim Pineda | Makeup Artist |
| Art | Lucas Culshaw | Concept Artist |
| Art | Dan Wilkerson | Set Dresser |
| Art | Tim Larsen | Painter |
| Costume & Make-Up | Christine Wostak | Assistant Makeup Artist |
| Costume & Make-Up | Jane Hassinger | Hair Department Head |
| Art | Dan Buckley | Set Dresser |
| Camera | Shiloh Eck | Best Boy Grip |
| Camera | Danny Vanzura | Camera Loader |
| Camera | Chris Garofalo | Grip |
| Lighting | Shawn Torge | Best Boy Electrician |
| Camera | Robert Veliky | Camera Loader |
| Camera | Erik Curtis | First Assistant Camera |
| Camera | Larry Gianneschi IV | Second Assistant Camera |
| Sound | Marnie Moore | Foley Artist |
| Camera | Wade Whitley | First Assistant Camera |
| Crew | Jack Firman | Special Effects Technician |
| Sound | K.C. Ladnier | ADR Recordist |
| Sound | Kim Foscato | First Assistant Sound Editor |
| Lighting | Dave Sonnenberg | Electrician |
| Sound | Jacob Kemp | Boom Operator |
| Editing | Johnny Rice | Assistant Editor |
| Visual Effects | Bill Sturgeon | Visual Effects Coordinator |
| Sound | Jurgen Scharpf | Sound Mix Technician |
| Sound | Jethro Senger | Sound Mixer |
| Sound | Marshall Winn | Dialogue Editor |
| Sound | Ellen Heuer | Foley Artist |
| Camera | John Oliveri | Second Assistant Camera |
| Sound | Samuel H. Hinckley | Foley Editor |
| Sound | Tony Sereno | Sound Mix Technician |
| Visual Effects | Neil Winn | Digital Compositor |
| Production | Ron Zappia | Casting Associate |
| Visual Effects | Michael Dvoravic | 3D Artist |
| Production | Joan Egan Foglia | Production Accountant |
| Production | Paul Palo | Casting Associate |
| Editing | George Koran | Colorist |
| Production | Matt Compton | Unit Production Manager |
| Camera | Marvin Haven | Grip |
| Visual Effects | Jim Beinke | 3D Modeller |
| Crew | Ken Gorrell | Special Effects Technician |
| Sound | Kyrsten Mate | Sound Effects Editor |
