Robert Downey Jr.Tony Stark / Iron Man
Mickey RourkeIvan Vanko / Whiplash
Don CheadleJames 'Rhodey' Rhodes / War Machine
Gwyneth PaltrowVirginia 'Pepper' Potts
Sam RockwellJustin Hammer
Scarlett JohanssonNatalie Rushman / Natasha Romanoff / Black Widow
Samuel L. JacksonNick Fury
Jon FavreauHarold 'Happy' Hogan
Garry ShandlingSenator Stern
John SlatteryHoward Stark
Paul BettanyJ.A.R.V.I.S. (voice)
Clark GreggPhil Coulson
Leslie BibbReporter Christine Everhart
Evgeniy LazarevAnton Vanko
Kate MaraU.S. Marshal
Christiane AmanpourChristiane Amanpour
Philippe BergeronDetective Lemieux
James BetheaSecurity Force #1
Michael BrunoSecurity Force #2
Kate ClarkExpo Fan
Luminita DocanRussian Newscaster
François DuhamelFrench Photographer
Larry EllisonLarry Ellison
Adam GoldsteinAdam Goldstein
Tim GuineeMajor Allen
Eric L. HaneyGeneral Meade
Ali Khan10 Rings Gangster
Stan LeeLarry King
Isaiah Guyman Martin IVAV Operator
Helena MattssonRebecca
Anya MonzikovaRebeka
Keith MiddlebrookExpo Cop
Margy MooreBambi Arbogast
Olivia MunnChess Roberts
Elon MuskElon Musk
Bill O'ReillyBill O'Reilly
Alejandro PatiñoStrawberry Vendor
Davin RansomYoung Tony Stark
Karim SalehGuard
Brian SchaefferHammer Expo Tech
Phillipe SimonFrench Waiter
Jack WhiteJack
Jenny RobinsonIronette Dancer
Melanie BrownIronette Dancer
Krystal EllsworthIronette Dancer
Victoria GracieIronette Dancer
Gina CantrellIronette Dancer
Renee HerlockerIronette Dancer
Jill Ann Pineda-ArnoldIronette Dancer
Sandy ColtonIronette Dancer
Annika IhnatIronette Dancer
Lindsay DennisIronette Dancer
Jennifer D. JohnsonIronette Dancer
Lindsay RosenbergIronette Dancer
Hannah DouglassIronette Dancer
Brooke LongIronette Dancer
Rachele Brooke SmithIronette Dancer
Kylette ZamoraIronette Dancer
Nadine EllisIronette Dancer
Ayelet Ben-ShaharModel (uncredited)
John CeallachCaptain Anders (uncredited)
Katie ClearyBeautiful Girl (uncredited)
Ajarae ColemanExpo Guest (uncredited)
Timothy 'TJ' James DriscollFrench Prison Guard #2 (uncredited)
Jasmine DustinWatermelon Girl (uncredited)
Sam FelmanStark Expo Attendee (uncredited)
Shakira Vanise GamblePepper's Party Guest (uncredited)
Paul GraceFrench Prison Guard #1 (uncredited)
Mark KubrPrisoner (uncredited)
Cameron LeeSenate Page (uncredited)
Jee-Yun LeeReporter (archive footage) (uncredited)
Mathew LorenceauPrison Guard Chevalier (uncredited)
Christopher MalekiReporter (uncredited)
Bryan McCoyExpo Guest (uncredited)
Tony NevadaSWAT Sergeant Bellows (uncredited)
Allison OchmanekWatermelon Girl (uncredited)
Nicolas PajonFrench Reporter (uncredited)
Steven James PriceSenate Gallery Member (uncredited)
Tanoai ReedSecurity Guard Fighting Happy Hogan (uncredited)
Peter Trenholm SmithSenator (uncredited)
Doug SwanderParty Guest (uncredited)
Peter Sebastian WrobelTony Stark Usher (uncredited)
Nick W. NicholsonStark Expo Attendee (uncredited)
Kristin QuickVIP Expo Guest
Matt McColmGuard (uncredited)
Seth GreenExpo Fan (uncredited)