Robert Downey Jr. Tony Stark / Iron Man Gwyneth Paltrow Virginia 'Pepper' Potts Don Cheadle James 'Rhodey' Rhodes / Iron Patriot Guy Pearce Aldrich Killian / The Mandarin Rebecca Hall Maya Hansen Jon Favreau Harold 'Happy' Hogan Ben Kingsley Trevor Slattery / The Mandarin Stephanie Szostak Brandt James Badge Dale Savin William Sadler President Matthew Ellis Miguel Ferrer Vice President Rodriguez Dale Dickey Mrs. Davis Ty Simpkins Harley Keener Paul Bettany J.A.R.V.I.S. (voice) Wang Xueqi Doctor Wu Shaun Toub Ho Yinsen Pat Kiernan Himself Thomas Roberts Himself Bill Maher Himself Joan Rivers Herself Glenn Foster Pushy Tabloid Reporter Anthony Reynolds Helicopter Pilot #1 Kendrick Cross Helicopter Pilot #2 Tom Clark Reporter at House Wreckage Brian Schaeffer Mandarin Studio Technician John Eddins Mandarin Look-Out Spencer Garrett Rose Hill Sheriff Sarah Burkhardt Junior Technician Jan Broberg Senior Technician Andrew Lauer Satellite Technician Nate Bynum Technical Director Tom Virtue Thomas Richards Roy McCrerey President's Aide Bobby Tisdale Pageant Emcee Stan Lee Pageant Judge Adam Pally Gary the Cameraman Cullen Moss Extremis Candidate Wesley Thompson Secret Service Agent Jenna Ortega Vice President's Daughter Corey Hawkins Navy Op Linden Ashby Commander Sala Baker Extremis Soldier Fernando Chien Extremis Soldier Adrian Gonzalez Extremis Soldier Markos Rounthwaite Extremis Soldier Mark Ruffalo Bruce Banner (uncredited) Fan Bingbing Wu Jiaqi Johnny Otto Military Advisor (uncredited)