Eight years after fleeing the Congo following his assassination of that country's minister of mining, former assassin Jim Terrier is back, suffering from PTSD and digging wells to atone for his violent past. After an attempt is made on his life, Terrier flies to London to find out who wants him dead -- and why. Terrier's search leads him to a reunion with Annie, a woman he once loved, who is now married to an oily businessman with dealings in Africa.
Unfortunately the movie The Gunman is not yet available on HBO Max.
| Crew | Leopold Hughes | Post Production Assistant |
| Crew | Antonio Arnalte | Stunt Double |
| Crew | Zarene Dallas | Stunt Double |
| Crew | Levan Doran | Stunt Double |
| Directing | Pierre Morel | Director |
| Writing | Pete Travis | Screenplay |
| Writing | Don MacPherson | Screenplay |
| Writing | Sean Penn | Screenplay |
| Writing | Jean-Patrick Manchette | Novel |
| Art | Gemma Fauria | Art Direction |
| Costume & Make-Up | Francesca Van Der Feyst | Makeup Artist |
| Directing | Morag Cameron | Script Supervisor |
| Costume & Make-Up | Cristina Sopeña | Costume Supervisor |
| Art | Joan Sabaté | Art Department Coordinator |
| Costume & Make-Up | Jill Taylor | Costume Design |
| Costume & Make-Up | Inge Hough | Set Costumer |
| Art | Sylvia Steinbrecht | Art Direction |
| Costume & Make-Up | Paul Job | Hairstylist |
| Costume & Make-Up | Bret Mayo | Hairstylist |
| Costume & Make-Up | Anna Izquierdo | Set Costumer |
| Art | Marina Pozanco | Art Direction |
| Costume & Make-Up | Ana Lozano | Makeup Artist |
| Art | Anneke Botha | Set Decoration |
| Production | Peter McAleese | Executive Producer |
| Production | Stephen Bender | Associate Producer |
| Production | Sean Penn | Producer |
| Art | Andrew Laws | Production Design |
| Production | Adam Kuhn | Co-Producer |
| Editing | Frédéric Thoraval | Editor |
| Production | Reg Poerscout-Edgerton | Casting |
| Production | Sally French | Line Producer |
| Production | Alex Heineman | Co-Producer |
| Production | Aaron Auch | Executive Producer |
| Sound | Marco Beltrami | Original Music Composer |
| Camera | Flavio Martínez Labiano | Director of Photography |
| Production | Olivier Courson | Executive Producer |
| Production | Ron Halpern | Producer |
| Production | Steve Richard | Executive Producer |
| Production | Adrián Guerra | Executive Producer |
| Production | Andrew Rona | Producer |
| Art | Stuart Kearns | Supervising Art Director |
| Production | Carmel Musgrove | Associate Producer |
| Production | Ethan Erwin | Associate Producer |
| Production | Ray Kybartas | Co-Producer |
| Sound | Colin Nicolson | Production Sound Mixer |
| Sound | Jorge Adrados | Boom Operator |
| Costume & Make-Up | Graham Johnston | Hair Designer |
| Costume & Make-Up | Caitlin Acheson | Makeup Artist |
| Sound | Paul Carter | Sound Designer |
| Art | Dave Fisher | Property Master |
| Art | Christophe Dalberg | Art Direction |
| Sound | Hugo Adams | Foley Editor |
| Costume & Make-Up | Vivienne Simpson | Makeup Artist |
| Art | Héctor Gil | Property Master |
| Directing | Raymond Kirk | First Assistant Director |
| Camera | Salva Castellarnau | Key Grip |
| Costume & Make-Up | Eva Salas | Key Costumer |
| Sound | Matt Dunkley | Orchestrator |
| Camera | Jordi Florensa | First Assistant Camera |
| Camera | Javier González Leonardo | Key Grip |
| Sound | Bastide Donny | Music Supervisor |
| Crew | Markos Rounthwaite | Fight Choreographer |
| Camera | Álvaro Fernández Puig | First Assistant Camera |
| Costume & Make-Up | Graham Johnston | Makeup Designer |
| Visual Effects | Kevin Sheldon Saldanha | Visual Effects Coordinator |
| Crew | Steve McQuillan | Fight Choreographer |
| Camera | Imanol Nabea | First Assistant Camera |
| Sound | Michael Maroussas | Supervising Dialogue Editor |
| Visual Effects | Pau Costa | Special Effects Supervisor |
| Visual Effects | Shreyas Dorwat | Visual Effects Coordinator |
| Production | Tim Maw | Location Manager |
| Visual Effects | Justi Romero | Modeling |
| Art | Florian Müller | Set Designer |
| Visual Effects | Devika Kawle | Visual Effects Coordinator |
| Crew | Marc Wolff | Pilot |
| Editing | Emanuele Giraldo | First Assistant Editor |
| Sound | Frédéric Dubois | Sound Editor |
| Camera | Keith Bernstein | Still Photographer |
| Art | Nic Benns | Title Designer |
| Visual Effects | Vinay Karunakar | Visual Effects Coordinator |
| Sound | Biel Cabré | Sound Recordist |
| Sound | Davide Favargiotti | Dialogue Editor |
| Visual Effects | Mohak Sharma | Visual Effects Coordinator |
| Visual Effects | Jon Thum | Visual Effects Supervisor |
| Costume & Make-Up | Nuria Pascual-Andújar | Costume Coordinator |
| Sound | John Warhurst | Music Editor |
| Crew | Adam Goodall | Armorer |
| Sound | Rob Prynne | Sound Effects Designer |
| Visual Effects | Stuart Lashley | Visual Effects Supervisor |
| Visual Effects | Rachel Wheeler | Visual Effects Producer |
| Crew | Glenn Foster | Stunt Coordinator |
| Lighting | José Luis Rodríguez | Gaffer |
| Editing | Andrew Walton | First Assistant Editor |
| Crew | Andy Hague | Visual Effects Editor |
| Visual Effects | Mehul Jhaveri | Visual Effects Coordinator |
| Crew | Jordi Casares | Stunt Coordinator |
| Camera | Joe Alblas | Still Photographer |
| Camera | Adam Dale | Aerial Director of Photography |
| Production | Asia Jarzyna | Production Coordinator |
| Crew | Nick Jeffries | Armorer |
| Crew | William Conacher | Dialect Coach |
| Production | Marta del Río | Production Coordinator |
| Costume & Make-Up | Manolo García | Hairstylist |
| Costume & Make-Up | Nathaniel De'Lineadeus | Special Effects Makeup Artist |
| Costume & Make-Up | Chris Lyons | Special Effects Makeup Artist |
| Sound | Andrea King | Foley Artist |
| Sound | Jack Stew | Foley Artist |
| Sound | Peter Gleaves | ADR Mixer |
