Een steenrijke technologiepionier wil, na het in scène zetten van zijn eigen dood, de wereld een iets betere toekomst geven door de bloeddorstige dictator van Turgistan om te leggen. Hij rekruteert hiervoor een internationaal team van huurmoordenaars, spionnen en scherpschutters. De in totaal 6 huurlingen hebben om verschillende redenen een verleden dat beter uitgewist kan worden. Die kans krijgen zij, tijdens deze gevaarlijke en bloedige missie.
Nee, helaas is 6 Underground nog niet beschikbaar op Netflix in Nederland.
| Costume & Make-Up | Gilberto Siena | Set Costumer |
| Crew | Maria Gnecchi | Stunts |
| Directing | Jason Inman | First Assistant Director |
| Crew | Dessy Slavova | Stunts |
| Art | Christian Antolin | Title Designer |
| Crew | Nancy Thurston | Stunts |
| Crew | Phong Giang | Stunts |
| Writing | Paul Wernick | Writer |
| Writing | Rhett Reese | Writer |
| Directing | Michael Bay | Director |
| Camera | Bojan Bazelli | Director of Photography |
| Art | Jeffrey Beecroft | Production Design |
| Production | David Ellison | Producer |
| Production | Dana Goldberg | Producer |
| Sound | Adrian Bell | Sound Mixer |
| Production | Michael Bay | Producer |
| Production | Don Granger | Producer |
| Editing | Roger Barton | Editor |
| Production | Paul Wernick | Executive Producer |
| Production | Matthew Cohan | Executive Producer |
| Production | Rhett Reese | Executive Producer |
| Sound | Lorne Balfe | Original Music Composer |
| Crew | Jimmy N. Roberts | Stunts |
| Visual Effects | Richard R. Hoover | Visual Effects Supervisor |
| Editing | Calvin Wimmer | Editor |
| Editing | William Goldenberg | Editor |
| Crew | James Deane | Stunt Driver |
| Crew | Fredric Aasbø | Stunt Driver |
| Art | Géza Kerti | Art Direction |
| Art | Tamara Marini | Supervising Art Director |
| Art | Jille Azis | Set Decoration |
| Production | Marco Valerio Pugini | Co-Producer |
| Production | Ildikó Kemény | Co-Producer |
| Production | Denise Chamian | Casting |
| Production | Ian Bryce | Producer |
| Production | David Minkowski | Co-Producer |
| Production | Jonathan Hook | Co-Producer |
| Production | Michael Kase | Co-Producer |
| Art | Anshuman Prasad | Art Direction |
| Production | Garrett Grant | Executive Producer |
| Production | Katie Malott | Associate Producer |
| Costume & Make-Up | Jany Temime | Costume Design |
| Art | Sebastian Schroeder | Supervising Art Director |
| Sound | Malte Bieler | Sound Effects Editor |
| Sound | Goeun Lee Everett | Sound Effects Editor |
| Sound | Joel Erickson | ADR Supervisor |
| Sound | Gary Dodkin | Sound Recordist |
| Sound | Erik Aadahl | Sound Designer |
| Sound | Adrian Bell | Production Sound Mixer |
| Sound | Brandon Proctor | Sound Mixer |
| Crew | Neil Toddy Todd | Special Effects |
| Sound | David Lucarelli | ADR Recordist |
| Sound | Kevin O'Connell | Sound Mixer |
| Visual Effects | Daniel Acon | Special Effects Supervisor |
| Sound | Peter Persaud | Foley Mixer |
| Crew | Antongiulio Dell'Orco | Special Effects Coordinator |
| Crew | Wolf Steiling | Special Effects |
| Sound | Tom Ozanich | Sound Mixer |
| Sound | Brandon Jones | Sound Designer |
| Visual Effects | Gábor Kiszelly | Special Effects Supervisor |
| Sound | Ethan Van der Ryn | Sound Designer |
| Crew | Silvia Chicoli | Special Effects Coordinator |
| Visual Effects | Peter Haran | Pyrotechnic Supervisor |
| Crew | Zuzana Milfort | Special Effects Coordinator |
| Sound | Jason W. Jennings | Sound Designer |
| Sound | Jonathan Klein | Foley Supervisor |
| Costume & Make-Up | Leonardo Cruciano | Prosthetic Makeup Artist |
| Visual Effects | Terry Glass | Special Effects Supervisor |
| Directing | Claudia De Falco | Second Assistant Director |
| Directing | K.C. Hodenfield | First Assistant Director |
| Directing | Michael Saunders | First Assistant Director |
| Directing | Christy Busby | Second Assistant Director |
| Costume & Make-Up | Yiotis Panayiotou | Key Hair Stylist |
| Costume & Make-Up | Giuliano Mariano | Hair Designer |
| Costume & Make-Up | Luca Saccuman | Hair Supervisor |
| Directing | Ivan Furlan | Second Assistant Director |
| Directing | Mark Cotone | First Assistant Director |
| Directing | Lorenzo Signoretti | Second Assistant Director |
| Directing | Tom Browne | Second Assistant Director |
| Directing | Anas Rawashdeh | Third Assistant Director |
| Directing | Gregg Smrz | Second Unit Director |
| Costume & Make-Up | Romina Ronzani | Hair Supervisor |
| Directing | Yves Friedman | Third Assistant Director |
| Directing | Gwyn Sannia | First Assistant Director |
| Directing | Mark Cockren | Second Assistant Director |
| Directing | Attila Veres | Second Assistant Director |
| Costume & Make-Up | Jana Carboni | Prosthetic Makeup Artist |
| Costume & Make-Up | Stefania Pellegrini | Makeup Artist |
| Costume & Make-Up | Jonathan Seti | Makeup Artist |
| Directing | Matti Kluttz | Second Assistant Director |
| Directing | Coalin Smith | Second Second Assistant Director |
| Costume & Make-Up | Sharon Doyle | Makeup Supervisor |
| Costume & Make-Up | Raffaella Iorio | Key Makeup Artist |
| Costume & Make-Up | Nicola Mariano | Hair Designer |
| Directing | Steven Hacker | Second Assistant Director |
| Directing | George Max Trummler | Third Assistant Director |
| Costume & Make-Up | Silvia Persica | Makeup Artist |
| Directing | Rosario Pucciarelli | Second Assistant Director |
| Costume & Make-Up | Domingo Santoro | Key Hair Stylist |
| Directing | Randi Stephan | Assistant Director |
| Visual Effects | Scott Benza | Animation Supervisor |
| Visual Effects | James McPhail | Creature Technical Director |
| Crew | 鄭繼宗 | Fight Choreographer |
| Visual Effects | Rebecca j Smith | Visual Effects Coordinator |
| Crew | Hayley Wright | Stunt Double |
| Crew | Mike Gunther | Stunt Coordinator |
| Visual Effects | Normand Archambault | CG Artist |
| Visual Effects | Audrey Sook Yan Chan | Visual Effects Production Manager |
| Visual Effects | Kristian Pedlow | Visual Effects |
| Visual Effects | Joaquin Ludewig | Visual Effects |
| Visual Effects | William V. Ross | Visual Effects Coordinator |
| Visual Effects | Nicholas M. Reynolds | Visual Effects |
| Visual Effects | Eugene Ting | Visual Effects Production Manager |
| Visual Effects | Oliver Koch | Matte Painter |
| Crew | Omid Arzhang | CG Supervisor |
| Visual Effects | Pontus Albrecht | Compositing Lead |
| Visual Effects | Lee Briggs | Visual Effects Producer |
| Visual Effects | Jan Krupp | Visual Effects Coordinator |
| Crew | Miroslav Lhotka | Stunt Double |
| Crew | Christina Petrou | Stunts |
| Crew | Richard Epper | Utility Stunts |
| Crew | Cristian Knight | Stunts |
| Crew | Toby Segar | Stunts |
| Crew | Levan Doran | Stunts |
| Crew | Bogdan Kumšackij | Stunts |
| Crew | Cali Nelle | Stunts |
| Crew | Vi-Dan Tran | Stunts |
| Crew | Martin Ivanov | Stunt Driver |
| Sound | Trygge Toven | Music Supervisor |
| Visual Effects | Jason H. Snell | Visual Effects Supervisor |
