Mourning the accidental death of his wife and having just moved to New York with his young son, laconic police psychologist Cal Jamison is reluctantly drawn into a series of grisly, ritualistic murders involving the immolation of two youths.
Unfortunately the movie The Believers is not yet available on HBO Max.
| Directing | John Schlesinger | Director |
| Writing | Mark Frost | Screenplay |
| Writing | Nicholas Conde | Novel |
| Sound | J. Peter Robinson | Original Music Composer |
| Camera | Robby Müller | Director of Photography |
| Editing | Peter Honess | Editor |
| Production | John Schlesinger | Producer |
| Crew | Rick Forsayeth | Stunts |
| Crew | Victor Magnotta | Stunts |
| Crew | Dwayne McLean | Stunts |
| Crew | Edgard Mourino | Stunts |
| Crew | Ray Woodfork | Stunts |
| Production | Edward Teets | Production Manager |
| Directing | Patrick Crowley | First Assistant Director |
| Directing | Ana Maria Quintana | Script Supervisor |
| Production | Patt McCurdy | Production Coordinator |
| Lighting | Frieder Hocheim | Gaffer |
| Crew | Wilhelmena Taylor | Choreographer |
| Crew | Dean Jeffries | Stunt Coordinator |
| Art | Jane Clark | Storyboard Artist |
| Directing | Michael Childers | Second Unit Director |
| Directing | Patrick Crowley | Second Unit Director |
| Crew | David Middlemas | Post Production Supervisor |
| Sound | Nicholas Stevenson | Sound Editor |
| Sound | Gerry Humphreys | Sound Mixer |
| Sound | Bob Risk | Dialogue Editor |
| Sound | Mark Auguste | Foley Editor |
| Editing | Jeremy Gibbs | First Assistant Editor |
| Editing | Richard Fettes | Assistant Editor |
| Editing | Mick Monks | Assistant Editor |
| Editing | Andrew Glen | Assistant Editor |
| Editing | Jonathan Lucas | Assistant Editor |
| Production | Vince Heileson | Production Accountant |
| Production | Monty Diamond | Production Manager |
| Directing | James W. Skotchdopole | Second Assistant Director |
| Art | John McDonnell | Property Master |
| Camera | Sandi Sissel | Camera Operator |
| Camera | Eddie Ramirez | First Assistant Camera |
| Camera | John Cambria | Second Assistant Camera |
| Sound | Tod A. Maitland | Sound Mixer |
| Sound | Kim Maitland | Boom Operator |
| Lighting | John W. DeBlau | Gaffer |
| Lighting | Jerry DeBlau | Best Boy Electric |
| Camera | Dennis Gamiello | Key Grip |
| Camera | Brian Fitzsimons | Grip |
| Camera | John Lowry | Dolly Grip |
| Camera | Kerry Hayes | Still Photographer |
| Production | Jane Bartelme | Production Office Coordinator |
| Production | Chris Stoia | Location Manager |
| Production | Jacob F. Conrad | Location Manager |
| Production | Peter Lombardi | Production Accountant |
| Editing | Cindy Kaplan Rooney | Assistant Editor |
| Costume & Make-Up | Abigail Murray | Costume Assistant |
| Costume & Make-Up | Werner Sherer | Hairdresser |
| Production | Sylvia Fay | Extras Casting |
| Camera | Peter Norman | Second Unit Director of Photography |
| Directing | Vebe Borge | Second Unit First Assistant Director |
| Production | David Coatsworth | Production Manager |
| Production | Maria Armstrong | Casting |
| Production | Ross Clydesdale | Casting |
| Directing | Kim H. Winther | Second Assistant Director |
| Directing | Martha Bean | Third Assistant Director |
| Art | Clive Thomasson | Assistant Decorator |
| Art | Danielle Fleury | Set Dresser |
| Art | Ian Wheatley | Set Dresser |
| Art | Alexa Anthony | Set Dresser |
| Art | Gina Hamilton | Set Dresser |
| Art | Peter Fletcher | Property Master |
| Art | Vic Rigler | Property Master |
| Sound | Bryan Day | Sound Mixer |
| Sound | Michael LaCroix | Boom Operator |
| Lighting | Christopher Porter | Best Boy Electric |
| Lighting | Ian Bibby | Electrician |
| Lighting | Michael McMurray | Electrician |
| Lighting | Michael Ruggles | Electrician |
| Camera | Marvin Midwicki | First Assistant Camera |
| Camera | Stephen S. Campanelli | Second Assistant Camera |
| Camera | Christopher Dean | Key Grip |
| Camera | Daniel Narduzzi | Best Boy Grip |
| Production | Debbie Cooke | Production Coordinator |
| Production | Keith Large | Location Manager |
| Production | Greg Van Riel | Assistant Location Manager |
| Production | Rose Lewis | Extras Casting |
| Camera | Takashi Seida | Still Photographer |
| Editing | Robin Russell | Assistant Editor |
| Editing | Lee Michael Searles | Assistant Editor |
| Costume & Make-Up | Carol Wood | Assistant Costume Designer |
| Costume & Make-Up | Maureen Gurney | Wardrobe Master |
| Costume & Make-Up | Kim Kozolanka | Wardrobe Assistant |
| Costume & Make-Up | Jay Du Boisson | Wardrobe Assistant |
| Costume & Make-Up | Ivan Lynch | Hairdresser |
| Art | Joe Curtin | Construction Manager |
| Art | Kirk Cheney | Construction Manager |
| Crew | Nick Kosonic | Scenic Artist |
| Crew | Myles Roth | Carpenter |
| Production | Dennis Jacobson | Assistant Accountant |
| Crew | A. Randy Jones | Transportation Coordinator |
| Crew | Alex Dawes | Transportation Captain |
| Crew | Brian Cole | Craft Service |
| Production | Michael Childers | Producer |
| Production | Beverly J. Camhe | Producer |
| Production | Mark Frost | Associate Producer |
| Production | Edward Teets | Executive Producer |
| Production | Donna Isaacson | Casting |
| Production | John S. Lyons | Casting |
| Art | Simon Holland | Production Design |
| Art | John Kasarda | Art Direction |
| Art | Carol Spier | Art Direction |
| Art | Susan Bode Tyson | Set Decoration |
| Art | Elinor Rose Galbraith | Set Decoration |
| Costume & Make-Up | Shay Cunliffe | Costume Design |
| Costume & Make-Up | Mickey Scott | Makeup Artist |
| Costume & Make-Up | Werner Sherer | Hairstylist |
| Costume & Make-Up | Shonagh Jabour | Makeup Artist |
| Costume & Make-Up | Kevin Haney | Special Effects Makeup Artist |
| Crew | Connie Brink | Special Effects |
