Gwyneth Paltrow - Virginia "Pepper" Potts

Don Cheadle - Lt. Col. James "Rhodey" Rhodes / War Machine

Scarlett Johansson - Natalie Rushman / Natasha Romanoff / Black Widow

Mickey Rourke - Ivan Vanko / Whiplash

Sam Rockwell - Justin Hammer

Samuel L. Jackson - Nick Fury

Jon Favreau - Harold "Happy" Hogan

Clark Gregg - Agent Phil Coulson

John Slattery - Howard Stark

Garry Shandling - Senator Stern

Paul Bettany - J.A.R.V.I.S. (voice)

Leslie Bibb - Christine Everhart

Kate Mara - U.S. Marshal

Evgeniy Lazarev - Anton Vanko

Christiane Amanpour - Herself

Philippe Bergeron - Detective Lemieux

Helena Mattsson - Rebecca

Olivia Munn - Chess Roberts

Anya Monzikova - Rebeka

James Bethea - Security Force #1

Michael Bruno - Security Force #2

Kate Clark - Expo Fan

Luminita Docan - Russian Newscaster

François Duhamel - French Photographer

Larry Ellison - Himself

Adam Goldstein - Himself

Tim Guinee - Major Allen

Eric L. Haney - General Meade

Ali Khan - 10 Rings Gangster

Stan Lee - Himself

Isaiah Guyman Martin IV - AV Operator

Keith Middlebrook - Expo Cop

Margy Moore - Bambi Arbogast

Elon Musk - Himself

Bill O'Reilly - Himself

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 Gracie - Ironette Dancer

Gina Cantrell - Ironette Dancer

Renee Herlocker - Ironette Dancer

Jill Ann Pineda-Arnold - Ironette Dancer

Sandy 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)

Gregory Baldi - Monaco Grand Prix Restaurant Guest (uncredited)

Elya Beer - Bartender (uncredited)

Ayelet Ben-Shahar - Model (uncredited)

Jordan Bobbitt - Little Girl at EXPO Gala (uncredited)

Chris Borden - Dignitary / Expo Attendee (uncredited)

Pete Brown - Air Force Major (uncredited)

Basilina Butler - Tony Stark Racing Fan (uncredited)

John Ceallach - Captain Anders (uncredited)

Katie Cleary - Beautiful Girl (uncredited)

Ajarae Coleman - Expo Guest (uncredited)

Rick L. Dean - Monte Carlo Race Fan (uncredited)

Timothy 'TJ' James Driscoll - French Prison Guard #2 (uncredited)

Jasmine Dustin - Watermelon Girl (uncredited)

Mark Casimir Dyniewicz - Justin Hammer Expo Attendee (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)

James Granville - Expo Fan (uncredited)

Kathryn Henzler - Expo Attendee (uncredited)

Jennifer Lynne Johnson - Expo Attendee (uncredited)

Mark Kubr - Prisoner (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)

Bryan McCoy - Expo Guest (uncredited)

Ed Moy - Awards Attendee (uncredited)

Delka Nenkova - Russian Woman (uncredited)

Tony Nevada - SWAT Sergeant Bellows (uncredited)

Allison Ochmanek - Watermelon Girl (uncredited)

Nicolas Pajon - French Reporter (uncredited)

H.E. Victor J.W. Pekarcik III - White House Chief of Staff (uncredited)

Erin Pickett - Expo Guest (uncredited)

Olivia Presley - Expo VIP (uncredited)

Steven James Price - Senate Gallery Member (uncredited)

Kiana Prudhont - Expo Kid (uncredited)

Tanner Alexander Redman - 1960's Film Crew (uncredited)

Tanoai Reed - Security Guard Fighting Happy Hogan (uncredited)

Kelly Sarah - Stark Expo Attendee (uncredited)

Torin Sixx - Pepper's Birthday Party Guest (uncredited)

Peter Trenholm Smith - Senator (uncredited)

Grace Stanley - Model (uncredited)

Doug Swander - Party Guest (uncredited)

Michael A. Templeton - US Senator (uncredited)

Rosa Tyabji - Background (uncredited)

Peter Sebastian Wrobel - Tony Stark Usher (uncredited)

Maria Zambrana - Expo Attendee (uncredited)

Nick W. Nicholson - Stark Expo Attendee (uncredited)