| 角色 | 饰演者 | 角色介绍 |
| Tony Stark / Iron Man | 小罗伯特·唐尼 | |
| Pepper Potts | 格温妮丝·帕特洛 | |
| Lt. Col. James 'Rhodey' Rhodes / War Machine | 唐·钱德尔 | |
| Natalie Rushman / Natasha Romanoff / Black Widow | 斯嘉丽·约翰逊 | |
| Justin Hammer | 山姆·洛克威尔 | |
| Ivan Vanko / Whiplash | 米基·洛克 | |
| Colonel Nick Fury | 塞缪尔·杰克逊 | |
| Agent Coulson | 克拉克·格雷格 | |
| Howard Stark | 约翰·斯拉特里 | |
| Senator Stern | 盖瑞·山德林 | |
| Jarvis (voice) | 保罗·贝坦尼 | |
| U.S. Marshal | 凯特·玛拉 | |
| Christine Everhart | 莱丝莉·比伯 | |
| Happy Hogan | 乔恩·费儒 | |
| Herself | Christiane Amanpour | |
| Detective Lemieux | Philippe Bergeron | |
| Security Force #1 | James Bethea | |
| Security Force #2 | Michael Bruno | |
| Expo Fan | Kate Clark | |
| Russian Newscaster | Luminita Docan | |
| French Photographer | Fran?ois Duhamel | |
| Himself | Larry Ellison | |
| Himself (as Adam 'DJ AM' Goldstein) | 亚当·高德斯坦 | |
| Major Allen | 蒂姆·金尼 | |
| General Meade | Eric L. Haney | |
| 10 Rings Gangster | Ali Khan | |
| Anton Vanko (as Eugene Lazarev) | Yevgeni Lazarev | |
| Himself | 斯坦·李 | |
| AV Operator | Isaiah Guyman Martin IV | |
| Rebecca | 海伦娜·马特森 | |
| Expo Cop | 凯斯·米德尔布鲁克 | |
| Rebeka | Anya Monzikova | |
| Bambi Arbogast | Margy Moore | |
| Chess Roberts | 奥立薇娅·玛恩 | |
| Himself | Elon Musk | |
| Strawberry Vendor | Alejandro Patino |
