 | Robert Downey Jr. als Tony Stark / Iron Man |
 | Terrence Howard als James 'Rhodey' Rhodes |
 | Jeff Bridges als Obadiah Stane / Iron Monger |
 | Gwyneth Paltrow als Virginia 'Pepper' Potts |
 | Leslie Bibb als Reporter Christine Everhart |
 | Bill Smitrovich als General Gabriel |
 | Paul Bettany als J.A.R.V.I.S. (voice) |
 | Jon Favreau als Harold 'Happy' Hogan |
 | Shaun Toub als Yinsen |
 | Faran Tahir als Raza |
 | Clark Gregg als Phil Coulson |
 | Peter Billingsley als William Ginter Riva |
 | Sayed Badreya als Abu Bakaar |
 | Tim Guinee als Major Allen |
 | Will Lyman als Award Ceremony Narrator (voice) |
 | Tom Morello als Guard |
 | Marco Khan als Guard |
 | Daston Kalili als Guard |
 | Ido Mor als Guard |
 | Kevin Foster als Jimmy |
 | Garret Noël als Pratt |
 | Eileen Weisinger als Ramirez |
 | Ahmed Ahmed als Ahmed |
 | Fahim Fazli als Omar / ADR Voice |
| Gerard Sanders als Howard Stark |
 | Tim Rigby als Viper 1 |
 | Russell Richardson als Viper 2 |
 | Nazanin Boniadi als Amira Ahmed |
| Thomas Craig Plumer als Colonel Craig |
| Robert Berkman als Dealer at Craps Table |
 | Stacy Stas Hurst als Woman at Craps Table |
 | Lauren Scyphers als Woman at Craps Table |
| Frank Nyi als Engineer |
| Marvin Jordan als Air Force Officer |
 | Jim Cramer als Jim Cramer |
 | Donna Evans als Woman In SUV |
| Reid Harper als Kid in SUV |
| Summer Kylie Remington als Kid in SUV |
| Ava Rose Williams als Kid in SUV |
 | Vladimir Kubr als Kid in SUV |
| Callie Croughwell als Kid in SUV |
 | Javan Tahir als Gulmira Kid |
 | Sahar Bibiyan als Gulmira Mom |
| Patrick O'Connell als Reporter |
 | Adam Harrington als Reporter |
 | Meera Simhan als Reporter |
 | Ben Newmark als Reporter |
 | Ricki Lander als Flight Attendant |
 | Jeannine Kaspar als Flight Attendant |
 | Sarah Cahill als Flight Attendant |
 | Stan Lee als Stan Lee |
| Justin Rex als Air Force Lieutenant |
 | Zorianna Kit als Zorianna Kit |
 | Lana Kinnear als Stan's Girl |
 | Nicole Lindeblad als Stan's Girl |
 | Masha Lund als Stan's Girl |
| Gabrielle Tuite als Stan's Girl |
 | Tim Griffin als CAOC Analyst |
 | Joshua Harto als CAOC Analyst |
 | Micah A. Hauptman als CAOC Analyst |
| James Bethea als CAOC Analyst |
| Mike Cochrane als Gulmira Villager (uncredited) |
 | Flavia Manes Rossi als Reporter (uncredited) |
 | Samuel L. Jackson als Nick Fury (uncredited) |
 | Kristin J. Hooper als Reporter (uncredited) |
| Avi Arad | Producer |
| Ramin Djawadi | Original Music Composer |
| Sarah Halley Finn | Casting |
| Laura Jean Shannon | Costume Design |
| Stan Lee | Executive Producer |
| Ari Arad | Executive Producer |
| Rebecca Gregg | Costume Design |
| Dan Lebental | Editor |
| Randi Hiller | Casting |
| Matthew Libatique | Director of Photography |
| Andy Hass | Visual Effects |
| Kevin Feige | Producer |
| Cristina Weigmann | Script Supervisor |
| Victoria Alonso | Co-Producer |
| Riley Harper | Utility Stunts |
| Tad Griffith | Utility Stunts |
| Trinh Tran | Production Assistant |
| Russell Bobbitt | Property Master |
| Art Marcum | Screenplay |
| Hawk Ostby | Screenplay |
| Matt Holloway | Screenplay |
| Mark Fergus | Screenplay |
| Daniel Sudick | Special Effects Coordinator |
| Frank E. Eulner | Supervising Sound Editor |
| Ben Snow | Visual Effects Supervisor |
| Shane Mahan | Effects Supervisor |
| Christopher Boyes | Sound Re-Recording Mixer |
| Hal Hickel | Animation Supervisor |
| Gary Scalzo | Lighting Technician |
| Jon Favreau | Director |
| Danielle Wait | Utility Stunts |
| Laurence Todd Rosenthal | Utility Stunts |
| Brandon Johnson | Utility Stunts |
| Craig Rondell | Stunt Driver |
| Chad Randall | Utility Stunts |
| Mark Chavarria | Utility Stunts |
| Bob Brown | Utility Stunts |
| Victor Winters-Junco | Stunts |
| Tim Trella | Utility Stunts |
| Gilbert Rosales | Utility Stunts |
| Mario Roberts | Utility Stunts |
| Anderson Martin | Utility Stunts |
| Hannah Kozak | Utility Stunts |
| Michael Hilow | Utility Stunts |
| Freddie Hice | Utility Stunts |
| Tom Elliott | Utility Stunts |
| Hal Burton | Utility Stunts |
| Matt Baker | Utility Stunts |
| Keith Woulard | Stunt Coordinator |
| Daniel Stevens | Stunt Double |
| J.J. Perry | Utility Stunts |
| Theo Kypri | Utility Stunts |
| Gene Hartline | Utility Stunts |
| Donna Evans | Stunt Double |
| Dino Dos Santos | Utility Stunts |
| John T. Cypert | Utility Stunts |
| Loyd Catlett | Stunt Double |
| Robert Alonzo | Utility Stunts |
| Craig Stecyk | Utility Stunts |
| Mic Rodgers | Utility Stunts |
| J.C. Robaina | Utility Stunts |
| Brian Machleit | Utility Stunts |
| Luke LaFontaine | Utility Stunts |
| Krisztian Kery | Utility Stunts |
| Glenn Goldstein | Utility Stunts |
| Kevin Derr | Utility Stunts |
| Norm Compton | Utility Stunts |
| Alvin Zalamea | Stunts |
| Tim Rigby | Stunt Coordinator |
| Ben Hernandez Bray | Utility Stunts |
| Travis Fienhage | Stunts |
| Richard Bucher | Utility Stunts |
| Freddy Bouciegues | Utility Stunts |
| Ray Siegle | Utility Stunts |
| Mike Rufino | Utility Stunts |
| Cain Smead | Utility Stunts |
| David Ott | Utility Stunts |
| Anthony Kramme | Utility Stunts |
| Joe Bucaro III | Utility Stunts |
| Tammie Baird | Stunt Driver |
| Thomas Rosales Jr. | Utility Stunts |
| Rex Reddick | Utility Stunts |
| Anthony Martins | Utility Stunts |
| Nito Larioza | Utility Stunts |
| Clay Donahue Fontenot | Stunt Double |
| Jorge Cisneros | Utility Stunts |
| Richard Cetrone | Stunt Double |
| Todd Warren | Utility Stunts |
| Michael Runyard | Utility Stunts |
| Jason Rodriguez | Utility Stunts |
| Darryl Reeves | Utility Stunts |
| Oakley Lehman | Stunt Double |
| Mark Kubr | Utility Stunts |
| Steve Holladay | Utility Stunts |
| Rosine 'Ace' Hatem | Utility Stunts |
| Thomas Robinson Harper | Stunt Coordinator |
| Paul Eliopoulos | Utility Stunts |
| Greg Anthony | Utility Stunts |
| Paul Sklar | Utility Stunts |
| John Pohmisano | Utility Stunts |
| Eddie J. Fernandez | Utility Stunts |
| Clay Cullen | Utility Stunts |
| Sebastiano Cartier | Stunts |
| Chris Carnel | Utility Stunts |
| Daniel Arrias | Utility Stunts |
| Damien Moreno | Utility Stunts |
| Matt Leonard | Utility Stunts |
| Ross A. Jordan | Utility Stunts |
| Jon Braver | Utility Stunts |
| Mark Aaron Wagner | Utility Stunts |
| Mike Justus | Stunt Double |
| Keith Splinter Davis | Utility Stunts |
| Paul Crawford | Utility Stunts |
| Geo Corvera | Utility Stunts |
| Brian Brown | Utility Stunts |
| Joost Janssen | Stunt Driver |
| James M. Halty | Utility Stunts |
| Annie Ellis | Utility Stunts |
| Vince Deadrick Jr. | Stunt Double |
| David Castillo | Utility Stunts |
| Sandy Berumen | Stunts |
| Brian Simpson | Utility Stunts |
| J.J. Dashnaw | Utility Stunts |
| Mark Chapman | Utility Stunts |
| Kevin Scott | Utility Stunts |
| Chris Palermo | Utility Stunts |
| Richie Gaona | Utility Stunts |
| Max Daniels | Utility Stunts |
| Stan Winston | Special Effects |
| Greg Fitzpatrick | Stunt Double |
| Richard Bernard | Music Supervisor |
| Louis D'Esposito | Executive Producer |
| Peter Billingsley | Executive Producer |
| Jon Favreau | Executive Producer |
| David Maisel | Executive Producer |
| J. Michael Riva | Production Design |
| Jeremy Latcham | Associate Producer |
| Dave Jordan | Music Supervisor |
| Michael Bauman | Gaffer |
| Sara E. White | Unit Production Manager |
| Louis D'Esposito | Unit Production Manager |
| Eric Heffron | First Assistant Director |
| Michael J. Moore | Second Assistant Director |
| Ross T. Fanger | Executive In Charge Of Production |
| Eric Heffron | Associate Producer |
| Phil Neilson | Second Unit Director |
| Jonathan Taylor | Second Unit Director of Photography |
| Matt Finick | Executive in Charge of Finance |
| Charlie Davis | Executive In Charge Of Post Production |
| David J. Grant | Production Supervisor |
| Gary R. Wordham | Production Supervisor |
| Luminita Docan | Post Production Supervisor |
| Stan Lee | Comic Book |
| Don Heck | Comic Book |
| Larry Lieber | Comic Book |
| Jack Kirby | Comic Book |
| David F. Klassen | Supervising Art Director |
| Richard F. Mays | Art Direction |
| Suzan Wexler | Art Direction |
| Michael E. Goldman | Assistant Art Director |
| Gabriel Beristain | Additional Photography |
| Rebecca Robertson | Script Supervisor |
| Michael Tronick | Additional Editor |
| Greg Parsons | Additional Editor |
| Derek Brechin | Additional Editor |
| Victoria Alonso | Visual Effects Producer |
| David Lowery | Storyboard Artist |
| Stephen Platt | Storyboard Artist |
| Eric Ramsey | Storyboard Artist |
| Philip Keller | Storyboard Artist |
| Dianne Chadwick | Graphic Designer |
| John Bartnicki | Post Production Assistant |
| Patrick McMahon | Post Production Assistant |
| Harry Humphries | Military Consultant |
| Ilham Hosseini | Translator |
| Hans Zimmer | Executive Music Producer |
| Lorne Balfe | Additional Music |
| Bobby Tahouri | Additional Music |
| Clay Duncan | Additional Music |
| Ryeland Allison | Additional Music |
| Atli Örvarsson | Additional Music |
| Alan Meyerson | Scoring Mixer |
| Jojo Villanueva | Music Coordinator |
| Rebekah Johnson | Music Coordinator |
| Shannon Erbe | Music Editor |
| David Klotz | Music Editor |
| John Nelson | Visual Effects Supervisor |
| Steve Gentry | Driver |
| Jeffrey J. Dashnaw | Utility Stunts |
| Alison Faulk | Choreographer |
