 | Robert Downey, jr. | .... | Tony Stark |
 | Gwyneth Paltrow | .... | Pepper Potts |
 | Don Cheadle | .... | Lt. Col. James 'Rhodey' Rhodes |
 | Scarlett Johansson | .... | Natalie Rushman / Natasha Romanoff |
 | Sam Rockwell | .... | Justin Hammer |
 | Mickey Rourke | .... | Ivan Vanko |
 | Samuel L. Jackson | .... | Nick Fury |
 | Clark Gregg | .... | Agent Coulson |
 | John Slattery | .... | Howard Stark |
 | Garry Shandling | .... | Senator Stern |
 | Paul Bettany | .... | JARVIS (Stimme) |
 | Kate Mara | .... | U.S. Marshal |
 | Leslie Bibb | .... | Christine Everhart |
 | Jon Favreau | .... | Happy Hogan |
 | Christiane Amanpour | .... | Christiane Amanpour |
 | Philippe Bergeron | .... | Detective Lemieux |
 | James Bethea | .... | Security Force #1 |
 | Michael Bruno | .... | Security Force #2 |
 | Kate Clark | .... | Expo Fan |
 | Luminita Docan | .... | Russian Newscaster |
 | François Duhamel | .... | French Photographer |
 | Larry Ellison | .... | Larry Ellison |
 | Adam 'DJ AM' Goldstein | .... | Adam Goldstein |
 | Tim Guinee | .... | Major Allen |
 | Eric L. Haney | .... | General Meade |
 | Ali Khan | .... | 10 Rings Gangster |
 | Eugene Lazarev | .... | Anton Vanko |
 | Stan Lee | .... | Larry King |
 | Isaiah Guyman Martin IV | .... | AV Operator |
 | Helena Mattsson | .... | Rebecca |
 | Keith Middlebrook | .... | Expo Cop |
 | Anya Monzikova | .... | Rebeka |
 | Margy Moore | .... | Bambi Arbogast |
 | Olivia Munn | .... | Chess Roberts |
 | Elon Musk | .... | Elon Musk |
 | Bill O'Reilly | .... | Bill O'Reilly |
 | Alejandro Patino | .... | Strawberry Vendor |
 | Davin Ransom | .... | Young Tony Stark |
 | Karim Saleh | .... | Guard |
 | Brian Schaeffer | .... | Hammer Expo Tech |
 | Phillipe Simon | .... | French Waiter |
 | Jack White | .... | Jack |
 | Melanie Brown | .... | Ironette Dancer |
 | Krystal Ellsworth | .... | Ironette Dancer |
 | Victoria Parsons | .... | Ironette Dancer |
 | Gina Cantrell | .... | Ironette Dancer |
 | Renee Herlocker | .... | Ironette Dancer |
 | Jill Ann Pineda-Arnold | .... | Ironette Dancer |
 | Sandra Colton | .... | Ironette Dancer |
 | Annika Ihnat | .... | Ironette Dancer |
 | Jenny Robinson | .... | Ironette Dancer |
 | Lindsay Dennis | .... | Ironette Dancer |
 | Jennifer D. Johnson | .... | Ironette Dancer |
 | Lindsay Rosenberg | .... | Ironette Dancer |
 | Hannah Douglass | .... | Ironette Dancer |
 | Brooke Long | .... | Ironette Dancer |
 | Rachele Brooke Smith | .... | Ironette Dancer |
 | Nadine Ellis | .... | Ironette Dancer |
 | Kylette Zamora | .... | Ironette Dancer |
 | Ted Alderman | .... | News Cameraman (uncredited) |
 | Donessa Alexander | .... | Birthday Party Guest / Expo Guest (uncredited) |
 | Martin Andris | .... | Expo Greeter (uncredited) |
 | Cassity Atkins | .... | Expo Patron (uncredited) |
 | Ayelet' | .... | Model (uncredited) |
 | Russell Bailey | .... | Expo Attendee (uncredited) |
 | Gregory Baldi | .... | Monaco Grand Prix Restaurant Guest (uncredited) |
 | Elya Beer | .... | Bartender (uncredited) |
 | Jordan Bobbitt | .... | Little Girl at EXPO Gala (uncredited) |
 | Chris Borden | .... | Dignitary / Expo Attendee (uncredited) |
 | Lauren C. Brooks | .... | Expo Attendee (uncredited) |
 | Pete Brown | .... | Air Force Major (uncredited) |
 | Basilina Butler | .... | Tony Stark Racing Fan (uncredited) |
 | Elizabeth J. Carlisle | .... | Birthday Party Guest (uncredited) |
 | Michael Cash | .... | VIP Expo Guest (uncredited) |
 | John Ceallach | .... | Captain Anders (uncredited) |
 | Katie Cleary | .... | Beautiful Girl (uncredited) |
 | Ajarae Coleman | .... | Expo Guest (uncredited) |
 | Christian Contreras | .... | Expo attendee (uncredited) |
 | Rosa Costanza | .... | Background (uncredited) |
 | Rick L. Dean | .... | Monte Carlo Race Fan (uncredited) |
 | Timothy 'TJ' James Driscoll | .... | French Prison Guard #2 (uncredited) |
 | Josh Driver | .... | Expo Guest (uncredited) |
 | Jasmine Dustin | .... | Watermelon Girl (uncredited) |
 | Max Favreau | .... | Expo Kid / Peter Parker (uncredited) |
 | Sam Felman | .... | Stark Expo Attendee (uncredited) |
 | Caitlin Gallo | .... | I Love You girl (uncredited) |
 | Shakira Vanise Gamble | .... | Pepper's Party Guest (uncredited) |
 | Paul Grace | .... | French Prison Guard #1 (uncredited) |
 | Clare Grant | .... | Expo Fan (uncredited) |
 | James Granville | .... | Expo Fan (uncredited) |
 | Seth Green | .... | Expo Fan (uncredited) |
 | Kathryn Henzler | .... | Expo Attendee (uncredited) |
 | Cary Huff | .... | VIP Expo Guest (uncredited) |
 | Dustin Jacobs | .... | Expo Attendee (uncredited) |
 | Jennifer Lynne Johnson | .... | Expo Attendee (uncredited) |
 | Ralph Kampshoff | .... | USAF Maj. General Saunders (uncredited) |
 | Robert E. Kerr | .... | Racetrack Photographer (uncredited) |
 | Mark Kubr | .... | Prisoner (uncredited) |
 | Kevin Lapsley | .... | Race Car Fan (uncredited) |
 | Cameron Lee | .... | Senate Page (uncredited) |
 | Jee-Yun Lee | .... | Reporter(archive footage) (uncredited) |
 | Waymond Lee | .... | Expo Guest (uncredited) |
 | Mathew Lorenceau | .... | Prison Guard Chevalier (uncredited) |
 | Christopher Maleki | .... | Reporter (uncredited) |
 | Richard Markman | .... | Photographer at Senate hearing (uncredited) |
 | David L. Marston | .... | VIP Expo Guest (uncredited) |
 | Matt McColm | .... | Guard (uncredited) |
 | Bryan McCoy | .... | Expo Guest (uncredited) |
 | Heather S. Michaels | .... | Reporter (uncredited) |
 | Tony Montalbano | .... | Spectator (uncredited) |
 | Ed Moy | .... | Awards Attendee (uncredited) |
 | Kinyumba Mutakabbir | .... | Security Officer (uncredited) |
 | Aryn Nelson | .... | Stark Expo Attendee (uncredited) |
 | Delka Nenkova | .... | Russian Woman (uncredited) |
 | Tony Nevada | .... | SWAT Sergeant Bellows (uncredited) |
 | Stephen P. Nick | .... | VIP Expo Guest (uncredited) |
 | Allison Ochmanek | .... | Watermelon Girl (uncredited) |
 | Nicolas Pajon | .... | French Reporter (uncredited) |
 | Victor J. W. Pekarcik III | .... | White House Chief of Staff (uncredited) |
 | Joy Sydney Peters | .... | Actress (uncredited) |
 | Erin Pickett | .... | Expo Guest (uncredited) |
 | Olivia Presley | .... | Expo VIP (uncredited) |
 | Steven James Price | .... | Senate Gallery Member (uncredited) |
 | Kiana Prudhont | .... | Expo Kid (uncredited) |
 | Kristin Quick | .... | VIP Expo Guest (uncredited) |
 | Tanner Alexander Redman | .... | 1960's Film Crew (uncredited) |
 | Tanoai Reed | .... | Security Guard Fighting Happy Hogan (uncredited) |
 | Anthony J Sacco | .... | Expo Guest (uncredited) |
 | Kelly Sarah Samuels | .... | Stark Expo Attendee (uncredited) |
 | Torin Sixx | .... | Pepper's Birthday Party Guest (uncredited) |
 | Peter Trenholm Smith | .... | Senator (uncredited) |
 | Grace Stanley | .... | Model (uncredited) |
 | Douglas Swander | .... | Party Guest (uncredited) |
 | Michael A. Templeton | .... | US Senator (uncredited) |
 | Denise Vasquez | .... | Sci Expo Attendee (uncredited) |
 | Lucy Walsh | .... | Scientist in explosion (uncredited) |
 | Peter Wrobell | .... | Tony Stark Usher (uncredited) |
 | Maria Zambrana | .... | Expo Attendee (uncredited) |