A young family find themselves in serious danger when they move to an isolated haunted house in the Yorkshire Moors.
Unfortunately the movie Altar is not yet available on HBO Max.
| Directing | Nick Willing | Director |
| Writing | Nick Willing | Writer |
| Sound | Steve Browell | ADR & Dubbing |
| Crew | Matthew Dawson | Sound Recordist |
| Sound | Barnaby Smyth | Foley |
| Production | Amy Hubbard | Casting |
| Sound | Markus Moll | Sound Re-Recording Mixer |
| Production | Michele Camarda | Producer |
| Visual Effects | Ken Turner | Animation Supervisor |
| Art | Greyham Feehily | Construction Coordinator |
| Editing | Steve Browell | Dialogue Editor |
| Crew | Riky Ash | Stunt Coordinator |
| Camera | Matt Squire | Still Photographer |
| Lighting | Mike Archer | Gaffer |
| Crew | Rachel McWatt | Unit Publicist |
| Camera | Jan Richter-Friis | Director of Photography |
| Sound | Doug Cooper | Sound Re-Recording Mixer |
| Camera | Anthony Hugill | Camera Operator |
| Directing | Liz Briggs | Script Supervisor |
| Sound | Christoph Bauschinger | Music Editor |
| Costume & Make-Up | John Lindlar | Costume Design |
| Costume & Make-Up | Carolyn Cousins | Hairstylist |
| Visual Effects | Alexis Haggar | Visual Effects Supervisor |
| Editing | David Freeman | Editor |
| Art | John Ellis | Production Design |
| Art | Rebecca Mason | Art Direction |
| Sound | Michael Connell | Music Editor |
| Sound | Bernard O'Reilly | Supervising Sound Editor |
| Visual Effects | Dan Marbrook | Visual Effects Supervisor |
| Camera | Phil Witcomb | Still Photographer |
| Sound | Simon Boswell | Original Music Composer |
| Production | Jim Reeve | Executive Producer |
| Production | Robert Halmi Jr. | Executive Producer |
| Production | Charles Bates | Line Producer |
| Production | Hugo Heppell | Executive Producer |
| Production | Robert Halmi Sr. | Executive Producer |
| Crew | Lee Bagley | Stunt Double |
| Crew | Zarene Dallas | Stunt Double |
