After suffering a personal tragedy, and desperate for justice, Jacob Kanon, a veteran New York City police detective, embarks on the search for a twisted killer who is leaving a bloody trail of elaborate murders across Europe.
Unfortunately the movie The Postcard Killings is not yet available on HBO Max.
| Crew | Colin Gorry | Special Effects |
| Production | Tracey Edmonds | Producer |
| Writing | Andrew Stern | Screenplay |
| Production | Paul Brennan | Producer |
| Production | Miriam Segal | Producer |
| Directing | Danis Tanović | Director |
| Writing | Liza Marklund | Novel |
| Writing | James Patterson | Novel |
| Production | Mark Birmingham | Line Producer |
| Production | Leopoldo Gout | Producer |
| Editing | Sean Barton | Editor |
| Production | Rebecca Farhall | Casting |
| Production | Gail Stevens | Casting |
| Art | Pancho Chamorro | Set Decoration |
| Art | Jennifer Williams | Production Design |
| Costume & Make-Up | Heather Pitchford | Makeup Artist |
| Costume & Make-Up | Heather Pitchford | Hairstylist |
| Directing | Jessica Hurles-Laws | First Assistant Director |
| Writing | Ellen Brown Furman | Screenplay |
| Writing | Liza Marklund | Original Film Writer |
| Writing | Tove Alsterdal | Original Film Writer |
| Writing | Tena Štivičić | Original Film Writer |
| Production | James Patterson | Producer |
| Production | Peter Nelson | Producer |
| Camera | Salvatore Totino | Director of Photography |
| Costume & Make-Up | Nigel Egerton | Costume Designer |
| Costume & Make-Up | Heike Merker | Hair Designer |
| Costume & Make-Up | Heike Merker | Makeup Designer |
| Sound | Simon Lacey | Original Music Composer |
| Production | Steve Bowen | Executive Producer |
| Production | Bill Robinson | Executive Producer |
| Production | Jeffrey Dean Morgan | Executive Producer |
| Production | David Banks | Executive Producer |
| Production | David Levin | Executive Producer |
| Production | Christian Mercuri | Executive Producer |
| Production | Josh Reinhold | Executive Producer |
| Production | Paula Turnbull | Executive Producer |
| Production | James Swarbrick | Executive Producer |
| Production | Will Young | Executive Producer |
| Production | John E. Story | Executive Producer |
| Production | Neena Tailor | Executive Producer |
| Production | Norman Merry | Executive Producer |
| Production | Peter Hampden | Executive Producer |
| Production | Doris Schrenner | Executive Producer |
| Production | Marc Gabizon | Executive Producer |
| Production | Markus Aldenhoven | Executive Producer |
| Production | Martin Rushton-Turner | Executive Producer |
| Production | Kia Jam | Executive Producer |
| Production | Richard Raley | Executive Producer |
| Production | Jill Rachel Morris | Executive Producer |
| Production | Adam Hughes | Production Manager |
| Directing | Will Cummins | Second Assistant Director |
| Art | Choi Ho Man | Supervising Art Director |
| Production | Katy Covell | Casting Associate |
| Camera | Shaun Cobley | Camera Operator |
| Camera | Shaun Cobley | Steadicam Operator |
| Sound | Simon J. Willis | Sound Recordist |
| Sound | Stephen Longstaff | Boom Operator |
| Directing | Elizabeth West | Script Supervisor |
| Lighting | Mark 'Rocky' Evans | Gaffer |
| Camera | Darren Holland | Key Grip |
| Production | Tom Darby-Evans | Production Coordinator |
| Production | Stan Fus | Location Coordinator |
| Production | Mark Cushman | Location Manager |
| Production | Clive Miles | Location Manager |
| Production | Bobby Prince | Unit Manager |
| Costume & Make-Up | Roo Maurice | Makeup Supervisor |
| Costume & Make-Up | Roo Maurice | Hair Supervisor |
| Art | Alan Bailey | Property Master |
| Camera | Damir Šagolj | Still Photographer |
| Crew | Pål Morten Hverven | Stunt Coordinator |
| Crew | Paul Dray | Post Production Supervisor |
| Editing | Tom Russell | Colorist |
| Sound | Rob Hughes | Sound Re-Recording Mixer |
| Sound | Ian Waggott | Foley Artist |
| Sound | Paul Hanks | Foley Artist |
| Sound | Samir Fočo | Sound Effects Designer |
| Visual Effects | Robert Treen | Visual Effects Supervisor |
