As the Avengers and their allies have continued to protect the world from threats too large for any one hero to handle, a new danger has emerged from the cosmic shadows: Thanos. A despot of intergalactic infamy, his goal is to collect all six Infinity Stones, artifacts of unimaginable power, and use them to inflict his twisted will on all of reality. Everything the Avengers have fought for has led up to this moment - the fate of Earth and existence itself has never been more uncertain.
| Production | Kevin Feige | Producer |
| Directing | Joe Russo | Director |
| Directing | Anthony Russo | Director |
| Writing | Stephen McFeely | Screenplay |
| Production | Jon Favreau | Executive Producer |
| Sound | Alan Silvestri | Original Music Composer |
| Production | Louis D'Esposito | Executive Producer |
| Production | Stan Lee | Executive Producer |
| Production | Victoria Alonso | Executive Producer |
| Production | Alan Fine | Executive Producer |
| Writing | Jack Kirby | Comic Book |
| Camera | Trent Opaloch | Director of Photography |
| Costume & Make-Up | Judianna Makovsky | Costume Design |
| Writing | Christopher Markus | Screenplay |
| Writing | Jim Starlin | Comic Book |
| Production | Sarah Finn | Casting |
| Art | Charles Wood | Production Design |
| Art | Jim Barr | Art Direction |
| Art | Jann K. Engel | Art Direction |
| Visual Effects | Sean Ryan Jennings | VFX Artist |
| Production | James Gunn | Executive Producer |
| Production | Mitchell Bell | Co-Producer |
| Editing | Jeffrey Ford | Editor |
| Editing | Matthew Schmidt | Editor |
| Art | Thomas Brown | Art Direction |
| Art | Beat Frutiger | Art Direction |
| Art | Sean Ryan Jennings | Art Direction |
| Art | Mike Stallion | Art Direction |
| Costume & Make-Up | Mary Castor | Makeup Artist |
| Costume & Make-Up | Benji Dove | Makeup Artist |
| Production | Jamie Lengyel | Production Manager |
| Production | Lulu Morgan | Production Supervisor |
| Production | JoAnn Perritano | Unit Production Manager |
| Production | Jason Tamez | Production Supervisor |
| Directing | Chris Castaldi | First Assistant Director |
| Directing | Simon Downes | Second Assistant Director |
| Directing | Mark Rossini | Third Assistant Director |
| Costume & Make-Up | Janine Rath | Hair Department Head |
| Costume & Make-Up | Deborah Rutherford | Makeup Department Head |
| Costume & Make-Up | Michelle Diamantides | Key Hair Stylist |
| Costume & Make-Up | Conor McCullagh | Key Makeup Artist |
| Art | Theresa Greene | Art Department Coordinator |
| Art | Lauren Abiouness | Assistant Art Director |
| Art | Jennifer Bash | Assistant Art Director |
| Art | Kevin Gilbert | Assistant Art Director |
| Art | Sarah Ginn | Assistant Art Director |
| Art | Kevin Houlihan | Assistant Art Director |
| Art | Rhys Ifan | Assistant Art Director |
| Art | Luke Whitelock | Assistant Art Director |
| Costume & Make-Up | Sian Richards | Makeup Designer |
| Costume & Make-Up | Vivian Baker | Makeup Designer |
| Art | Rodney Fuentebella | Conceptual Illustrator |
| Art | Andy Park | Conceptual Illustrator |
| Art | John H. Samson | Construction Coordinator |
| Art | Isona Rigau | Draughtsman |
| Art | Alex Bowens | Draughtsman |
| Art | Aoife Warren | Draughtsman |
| Art | Russell R. Anderson | Leadman |
| Art | Russell Bobbitt | Property Master |
| Art | Tommy Janulis | Property Master |
| Art | Jackson Sze | Conceptual Illustrator |
| Art | Carolina Grisorio | Art Department Coordinator |
| Art | Fliss Jaine | Art Department Coordinator |
| Camera | Jeffrey Steven Brink | Aerial Camera |
| Crew | Michael Craig Ferguson | Drone Operator |
| Camera | Eric Dvorsky | Aerial Camera Technician |
| Camera | Jared Slater | Aerial Camera Technician |
| Camera | Jeremy Braben | Aerial Director of Photography |
| Camera | Dylan Goss | Aerial Director of Photography |
| Camera | Kent Harvey | Camera Operator |
| Camera | Geoffrey Haley | Camera Operator |
| Camera | Ross Coscia | Camera Operator |
| Lighting | Chris Milani | Best Boy Electric |
| Camera | Ronald Hersey | Camera Operator |
| Camera | David Richert | Camera Operator |
| Camera | Ken Fisher | Camera Operator |
| Camera | Maurice K. McGuire | Camera Operator |
| Camera | Tiko Pavoni | Camera Operator |
| Camera | Christopher Raymond | Camera Operator |
| Crew | Peter Ayriss | Drone Operator |
| Crew | Louie Northern | Drone Operator |
| Crew | Henry Bridges | Drone Operator |
| Camera | Sean Ricigliano | Epk Camera Operator |
| Lighting | Jeff Murrell | Gaffer |
| Lighting | Dan Riffel | Gaffer |
| Lighting | Pat Sweeney | Gaffer |
| Camera | Brian Rosso | Dolly Grip |
| Camera | Sean Devine | Dolly Grip |
| Camera | Michael J. Coo | Key Grip |
| Camera | Charles Crivier | Key Grip |
| Lighting | Shane Detwiler | Rigging Grip |
| Lighting | Darin Devonshire | Rigging Grip |
| Lighting | Sam Haynes | Rigging Grip |
| Lighting | Mitchell' Bird' Hobby | Rigging Grip |
| Lighting | Nolan Jenkins | Rigging Grip |
| Lighting | Joseph Kendrick | Rigging Grip |
| Lighting | Tony Murima | Rigging Grip |
| Lighting | Steve Pittman | Rigging Grip |
| Lighting | K.C. Roballo | Rigging Grip |
| Lighting | R michael Sasser | Rigging Grip |
| Production | Johnny Gidcomb | ADR Voice Casting |
| Production | Tara Feldstein | Casting |
| Production | Chase Paris | Casting |
| Production | Jason B. Stamey | Casting Associate |
| Production | Adriana Del Valle | Casting Assistant |
| Production | Molly Doyle | Casting Assistant |
| Costume & Make-Up | German Lee Castillo | Ager/Dyer |
| Costume & Make-Up | Sebastien Jutras | Ager/Dyer |
| Costume & Make-Up | Travis Scott Merrill | Ager/Dyer |
| Costume & Make-Up | Jason Rainey | Ager/Dyer |
| Costume & Make-Up | Gildardo Tobon | Ager/Dyer |
| Costume & Make-Up | Michael Crow | Assistant Costume Designer |
| Costume & Make-Up | Erica Rice | Assistant Costume Designer |
| Costume & Make-Up | Lisa Tomczeszyn | Assistant Costume Designer |
| Costume & Make-Up | Elizabeth Shelton | Assistant Costume Designer |
| Costume & Make-Up | Mhairi Gibb | Costume Coordinator |
| Costume & Make-Up | Nick Scarano | Costume Supervisor |
| Costume & Make-Up | Sheena Wichary | Costume Supervisor |
| Costume & Make-Up | Laura Steinman | Costume Supervisor |
| Costume & Make-Up | Javier Arrieta | Key Costumer |
| Costume & Make-Up | Annie Hill | Costume Supervisor |
| Costume & Make-Up | Michelle Liu | Key Costumer |
| Costume & Make-Up | Sanford Slepak | Key Costumer |
| Costume & Make-Up | Kate Abraham | Set Costumer |
| Costume & Make-Up | Anthony Almaraz | Set Costumer |
| Costume & Make-Up | Jason Blackman | Set Costumer |
| Costume & Make-Up | David Butler | Set Costumer |
| Costume & Make-Up | Charlie Dicus | Set Costumer |
| Costume & Make-Up | Yen Do | Set Costumer |
| Costume & Make-Up | Mike Lutz | Set Costumer |
| Costume & Make-Up | Branden Marks | Set Costumer |
| Costume & Make-Up | Ashley Marie Parker | Set Costumer |
| Costume & Make-Up | Craig Anthony | Set Costumer |
| Costume & Make-Up | Tricia Yoo | Set Costumer |
| Costume & Make-Up | Kevin Boyett | Set Costumer |
| Crew | Ian Creed | Marine Coordinator |
| Directing | Eli Sasich | Script Coordinator |
| Crew | John M. Pisani | Unit Publicist |
| Sound | Dave Jordan | Music Supervisor |
| Editing | Laura Holeman | Digital Intermediate |
| Editing | Jessica T. Stone | Digital Intermediate |
| Editing | Cassie Dixon | First Assistant Editor |
| Editing | Robin Buday | First Assistant Editor |
| Visual Effects | Aaron Colman-Hayes | 3D Artist |
| Visual Effects | Erik Christensen | 3D Modeller |
| Visual Effects | Jan Philip Cramer | Animation Director |
| Visual Effects | Kevin Martel | Animation Supervisor |
| Visual Effects | Ben Wiggs | Animation Supervisor |
| Crew | Gourdal Sebastien | CG Supervisor |
| Crew | Hannes Poser | CG Supervisor |
| Crew | Greg Teegarden | CG Supervisor |
| Crew | Steve Sauers | CG Supervisor |
| Crew | Fernando Zorrilla | CG Supervisor |
| Visual Effects | Yogesh Bhavsar | Creature Technical Director |
| Visual Effects | Bjørn Blaaberg Sørensen | Creature Technical Director |
| Visual Effects | Tracy Nicole Irwin | Creature Technical Director |
| Visual Effects | Chay Johansson | Creature Technical Director |
| Visual Effects | Josh Methven | Creature Technical Director |
| Visual Effects | Natapon Huangsakuncharoen | Creature Technical Director |
| Visual Effects | Matthias Zeller | Creature Technical Director |
| Visual Effects | Ellen Hoffmann | Lead Animator |
| Visual Effects | Keith W. Smith | Lead Animator |
| Visual Effects | Santosh Kumar Dey | Matchmove Supervisor |
| Visual Effects | Salvatore Valone | VFX Editor |
| Visual Effects | Marla Neto Henshaw | Visual Effects Coordinator |
| Visual Effects | Alexander St. Pierre | Visual Effects Coordinator |
| Visual Effects | Daniel Baker | Visual Effects Coordinator |
| Visual Effects | Giedre Balseviciute | Visual Effects Coordinator |
| Visual Effects | Andrew Cheng | Visual Effects Coordinator |
| Visual Effects | Jake Delaney | Visual Effects Coordinator |
| Visual Effects | Rebecca Fair-Lien | Visual Effects Coordinator |
| Visual Effects | Christopher Finley | Visual Effects Coordinator |
| Visual Effects | Simon Fraser | Visual Effects Coordinator |
| Visual Effects | Brendan Grady | Visual Effects Coordinator |
| Visual Effects | Kotamraju Karthik | Visual Effects Coordinator |
| Visual Effects | Erin Langford | Visual Effects Coordinator |
| Visual Effects | Kelani Lim | Visual Effects Coordinator |
| Visual Effects | Matthew Lloyd | Visual Effects Coordinator |
| Visual Effects | Gareth Pearce | Visual Effects Coordinator |
| Visual Effects | Tamar Shaham | Visual Effects Coordinator |
| Visual Effects | Sarah Stauffer | Visual Effects Coordinator |
| Visual Effects | Caitlin Thornton | Visual Effects Coordinator |
| Visual Effects | Agnes Toomus | Visual Effects Coordinator |
| Visual Effects | Caroline Whitehill | Visual Effects Coordinator |
| Visual Effects | Wenjia Zhao | Visual Effects Coordinator |
| Visual Effects | Katia Muscariello | Visual Effects Coordinator |
| Visual Effects | Alison Luong | Visual Effects Coordinator |
| Visual Effects | Henry Wan | Visual Effects Coordinator |
| Visual Effects | Lee Maher | Visual Effects Coordinator |
| Visual Effects | Margaux Peach | Visual Effects Coordinator |
| Crew | Tom Barrett | Visual Effects Editor |
| Crew | Andy Stevens | Visual Effects Editor |
| Crew | Samuel Perkins | Visual Effects Editor |
| Crew | Lorelei David | Visual Effects Editor |
| Crew | Nick Dacey | Visual Effects Editor |
| Visual Effects | Katherine Farrar | Visual Effects Producer |
| Visual Effects | Asha Joseph | Visual Effects Producer |
| Visual Effects | Georgina Street | Visual Effects Producer |
| Visual Effects | Jen Underdahl | Visual Effects Producer |
| Visual Effects | Lara Lom | Visual Effects Producer |
| Visual Effects | Eric Scott | Visual Effects Producer |
| Visual Effects | Danielle Legovich | Visual Effects Producer |
| Visual Effects | Dan Deleeuw | Visual Effects Supervisor |
| Visual Effects | Varun Hadkar | Visual Effects Supervisor |
| Visual Effects | Doug Spilatro | Visual Effects Supervisor |
| Visual Effects | Swen Gillberg | Visual Effects Supervisor |
| Visual Effects | Jamie Hallett | Visual Effects Supervisor |
| Visual Effects | Andrew Morley | Visual Effects Supervisor |
| Visual Effects | Russell Earl | Visual Effects Supervisor |
| Visual Effects | Greg Steele | Visual Effects Supervisor |
| Visual Effects | Matt Aitken | Visual Effects Supervisor |
| Visual Effects | Johnny Roek | Visual Effects Technical Director |
| Visual Effects | Javier Meroño | Visual Effects Technical Director |
| Visual Effects | Stefanie Blatt | Visual Effects Technical Director |
| Visual Effects | Oliver Ferguson | Visual Effects Technical Director |
| Crew | Scott Dwyer | Pyrotechnician |
| Visual Effects | Daniel Sudick | Special Effects Supervisor |
| Visual Effects | Gareth Wingrove | Special Effects Supervisor |
| Sound | David M. Roberts | Boom Operator |
| Sound | Kate Morath | Boom Operator |
| Sound | Robert Vardaros | Boom Operator |
| Sound | Nick Ray Harris | Boom Operator |
| Sound | Matt Aston | Boom Operator |
| Sound | Benjamin Farthing | Boom Operator |
| Sound | Will Loftin | Boom Operator |
| Sound | Marcus Petruska | Boom Operator |
| Sound | Todd O. Russell | Boom Operator |
| Sound | Charles German | Boom Operator |
| Sound | Dan O'Connell | Foley |
| Sound | Shelley Roden | Foley |
| Sound | John Roesch | Foley |
| Sound | Christopher Flick | Foley Editor |
| Sound | Jacob Riehle | Foley Editor |
| Sound | David Farmer | Sound Designer |
| Sound | Nia Hansen | Sound Designer |
| Sound | Shannon Mills | Sound Designer |
| Sound | Samson Neslund | Sound Effects Editor |
| Sound | Steve Orlando | Sound Effects Editor |
| Sound | Tom Johnson | Sound Re-Recording Mixer |
| Sound | Juan Peralta | Sound Re-Recording Mixer |
| Sound | Daniel Laurie | Supervising Sound Editor |
| Sound | Shannon Mills | Supervising Sound Editor |
| Crew | Daniel Hargrave | Stunts |
| Directing | Hajar Mainl | Script Supervisor |
| Directing | Lori Grabowski | Script Supervisor |
| Art | Sarah Stuart | Draughtsman |
| Sound | Serena Reichenbaugh | Sound Mixer |
