 | Paul Rudd als Scott Lang / Ant-Man |
 | Evangeline Lilly als Hope van Dyne / The Wasp |
 | Jonathan Majors als Kang the Conqueror |
 | Kathryn Newton als Cassie Lang |
 | Michelle Pfeiffer als Janet van Dyne |
 | Michael Douglas als Dr. Hank Pym |
 | Corey Stoll als M.O.D.O.K. |
 | Bill Murray als Lord Krylar |
 | William Jackson Harper als Quaz |
 | David Dastmalchian als Veb (voice) |
 | Jamie Andrew Cutler als XOLUM |
 | Katy O'Brian als Jentorra |
 | Mark Weinman als Patrol Police Officer / On-Set M.O.D.O.K. |
 | Randall Park als Jimmy Woo |
 | Ross Mullan als Axia Restaurant Maitre D' |
 | Tom Clark als Axia Restaurant Bartender |
 | Leon Cooke als Axia Restaurant Bartender |
| Nathan Blees als Axia Restaurant Waiter |
| Durassie Kiangangu als Axia Restaurant Waiter |
 | Liran Nathan als Axia Restaurant Waiter |
| Sam Symons als Krylar's Valet |
 | Grahame Fox als Broccoli Man |
| Nicola Peluso als Corrections Officer |
| Harrison Daniels als Booking Officer |
| Brahmdeo Shannon Ramana als Hope's Assistant |
 | Russell Balogh als Nomad Leader |
| Leonardo Taiwo als Quantumnaut Scientist |
| Osian Roberts als Quantumnaut Lieutenant |
| Lucas Gerstel als Book Signing Audience |
| Mia Gerstel als Book Signing Audience |
| Tracy Jeffrey als Book Signing Audience |
| Dinah Jeffrey als Book Signing Audience |
| Judy Jeffrey als Book Signing Audience |
| John Nayagam als Book Signing Audience |
 | Greta Nayagam als Book Signing Audience |
| Cathy Chan als Book Signing Audience |
 | Adam Sai als Book Signing Audience |
 | Jamie Sai als Book Signing Audience |
 | Jakari Fraser als Young Ant-Man Fan |
 | Patricia Belcher als Ant-Man Fan |
| Mark Oliver Everett als Jogger with Dog |
 | Ruben Rabasa als Café Owner |
| Melanie Garcia als Barista |
 | Gregg Turkington als Dale |
 | Sierra Katow als Waiter |
 | Ryan Bergara als Toasting Man |
 | Marielle Scott als Toasting Woman |
| Jake Millgard als Jogger |
 | Dey Young als Woman with Dog |
 | Briza Covarrubias als Hostess |
 | Tess Aubert als Waitstaff |
 | David J. Castillo als Waitstaff |
| Sir Cornwell als Waitstaff |
 | Alan Heitz als Waitstaff |
| Esther McAuley als Alien World Citizen |
| Aisling Maria Andreica als Alien World Citizen |
 | Milton Lopes als Alien World Citizen |
 | Roger Craig Smith als Quantumnaut Voices (voice) |
 | Matthew Wood als Quantumnaut Voices (voice) |
 | Loveday Smith als Janet Van Dyne Acting Double |
| John Townsend als Lord Krylar Acting Photo Double |
 | Tom Scharpling als N'Brij |
 | Tom Hiddleston als Loki (uncredited) |
 | Owen Wilson als Mobius M. Mobius (uncredited) |
 | Abby Ryder Fortson als Cassie Lang (archive footage) (uncredited) |
| Sarah Halley Finn | Casting |
| Stan Lee | Characters |
| Kevin Feige | Producer |
| Bill Pope | Director of Photography |
| Richard Roberts | Set Decoration |
| Sammy Sheldon | Costume Design |
| Peyton Reed | Director |
| Jack Kirby | Characters |
| Larry Lieber | Characters |
| Christophe Beck | Original Music Composer |
| Dave Jordan | Music Supervisor |
| Paul Corbould | Special Effects Supervisor |
| Nick Gottschalk | Supervising Art Director |
| Harlan Ellison | Thanks |
| Louis D'Esposito | Executive Producer |
| Victoria Alonso | Executive Producer |
| Kevin De La Noy | Executive Producer |
| Kevin De La Noy | Unit Production Manager |
| Karl McMillan | Production Supervisor |
| Roy Thomas | Thanks |
| Mark Waid | Thanks |
| Mitchell Bell | Co-Producer |
| Stephen Broussard | Producer |
| John Buscema | Thanks |
| Justin Doyle | Sound Effects Editor |
| John Byrne | Thanks |
| David Michelinie | Thanks |
| Allan Heinberg | Thanks |
| Walt Simonson | Thanks |
| Jeff Loveness | Writer |
| Sal Buscema | Thanks |
| Nicole Young | Costume Supervisor |
| Adam Gerstel | Editor |
| Steve Englehart | Thanks |
| Jordana Finkel | Art Direction |
| Brian Michael Bendis | Thanks |
| Sam Renton | Second Unit Director of Photography |
| Katrina Mackay | Art Direction |
| David Balfour | Property Master |
| Gary Powell | Stunt Coordinator |
| Tom Palmer | Thanks |
| Jo Beckett | Script Supervisor |
| Geof Isherwood | Thanks |
| Fiona Campbell Westgate | Visual Effects Producer |
| Justin Cornish | Visual Effects Supervisor |
| Malte Sarnes | Visual Effects Supervisor |
| Jan Sewell | Hair Designer |
| Jan Sewell | Makeup Designer |
| Laura Jennings | Editor |
| Wesley Sewell | Visual Effects Supervisor |
| Thomas E. Sullivan | Acting Double |
| Miranda Marks | Production Supervisor |
| Lawson Deming | Visual Effects Supervisor |
| Jonathan Borland | Sound Effects Editor |
| Liam Georgensen | Art Direction |
| Hugh McClelland | Art Direction |
| Lisa Kaminir | Acting Double |
| Dan DeLeeuw | Second Unit Director |
| Jessey Drake | Foley Supervisor |
| Tim Davies | Conductor |
| Conor O'Sullivan | Creature Design |
| Samson Neslund | Sound Effects Editor |
| Irene Dimarca | Assistant Art Director |
| Kimberly Patrick | Sound Designer |
| Kimberly Patrick | Supervising Sound Editor |
| Axel Bonami | Visual Effects Supervisor |
| Roger Stern | Thanks |
| Steve Ellingworth | Key Grip |
| Tom DeFalco | Thanks |
| Ron Frenz | Thanks |
| Ryan Meinerding | Visual Development |
| Jesse James Chisholm | Visual Effects Supervisor |
| Keely Lanigan-Atkins | Assistant Art Director |
| Brian Kruse | Acting Double |
| Michael Paraskevas | Additional Soundtrack |
| Aleksi Briclot | Concept Artist |
| Dave Cockrum | Thanks |
| Jason Greenblum | Visual Effects Supervisor |
| Steve Epting | Thanks |
| Kevin Changaris | Acting Double |
| Paola Magrans | Foley Editor |
| Cristian Camaroschi | Visual Effects Supervisor |
| Bob Layton | Thanks |
| Jordan Ballard | Post Production Supervisor |
| David Hodgins | Visual Effects Supervisor |
| Goeun Lee Everett | Sound Effects Editor |
| Olivier Coipel | Thanks |
| Antoine Jackson | Acting Double |
| Louise Young | Makeup Artist |
| Reetu Aggarwal | 3D Artist |
| Jasmine Lean | Assistant Art Director |
| Herb Trimpe | Thanks |
| Gottfried Rabl | Conductor |
| Archie Goodwin | Thanks |
| Will Htay | Production Design |
| Jim Cheung | Thanks |
| Thomas du Crest | Concept Artist |
| Mark Gruenwald | Thanks |
| Raven Davenport | Music Coordinator |
| Jonathan Hickman | Thanks |
| Ivo Coveney | Other |
| Terry Dodson | Thanks |
| Ernie Hart | Characters |
| Laura Stoltz | Co-Producer |
| David Jones | In Memory Of |
| Larry Alexander | Thanks |
| Javier Garrón | Thanks |
| Scott Reed | Thanks |
| Mike Mayhew | Thanks |
| Miguel Munera | Thanks |
| Brandon Peterson | Thanks |
| Sarah Paddison | Standby Art Director |
| Colin Woodbridge | Construction Manager |
| Andrew Reiber | Story Manager |
