Robert Downey Jr. (Tony Stark / Iron Man), Terrence Howard (James "Rhodey" Rhodes), Jeff Bridges (Obadiah Stane / Iron Monger), Gwyneth Paltrow (Virginia "Pepper" Potts), Leslie Bibb (Christine Everhart), Shaun Toub (Yinsen), Faran Tahir (Raza) more..., Clark Gregg (Phil Coulson), Bill Smitrovich (General Gabriel), Sayed Badreya (Abu Bakaar), Paul Bettany (J.A.R.V.I.S. (voice)), Jon Favreau (Harold "Happy" Hogan), Peter Billingsley (William Ginter Riva), Tim Guinee (Major Allen), Will Lyman (Award Ceremony Narrator (voice)), Tom Morello (Guard), Marco Khan (Guard), Daston Kalili (Guard), Ido Ezra (Guard), Kevin Foster (Jimmy), Garret Noël (Pratt), Eileen Weisinger (Ramirez), Ahmed Ahmed (Ahmed), Fahim Fazli (Omar), Gerard Sanders (Howard Stark), Tim Rigby (Viper 1), Russell Richardson (Viper 2), Nazanin Boniadi (Amira Ahmed), Thomas Craig Plumer (Colonel Craig), Robert Berkman (Dealer at Craps Table), Stacy Stas (Woman at Craps Table), Lauren Scyphers (Woman at Craps Table), Frank Nyi (Engineer), Marvin Jordan (Air Force Officer), Jim Cramer (Jim Cramer), Donna Evans (Woman In SUV), Reid Harper (Kid in SUV), Summer Kylie Remington (Kid in SUV), Ava Rose Williams (Kid in SUV), Vladimir Kubr (Kid in SUV) and others.

Stan Lee (Characters), Larry Lieber (Characters), Jack Kirby (Characters), Don Heck (Characters), Matthew Libatique (Director of Photography), Dan Lebental (Editor), Avi Arad (Producer) more..., Ramin Djawadi (Original Music Composer), Stan Lee (Executive Producer), Ari Arad (Executive Producer), Sarah Finn (Casting), Randi Hiller (Casting), Rebecca Bentjen (Costume Design), Laura Jean Shannon (Costume Design), Andy Hass (Visual Effects), Kevin Feige (Producer), Cristina Weigmann (Script Supervisor), Victoria Alonso (Co-Producer), Tad Griffith (Utility Stunts), Riley Harper (Utility Stunts), Trinh Tran (Production Assistant), Russell Bobbitt (Property Master), Mark Fergus (Screenplay), Hawk Ostby (Screenplay), Art Marcum (Screenplay), Matt Holloway (Screenplay), John Nelson (Senior Visual Effects Supervisor), Ben Snow (Visual Effects Supervisor), Daniel Sudick (Special Effects Coordinator), Shane Mahan (Effects Supervisor), Frank E. Eulner (Supervising Sound Editor), Christopher Boyes (Sound Re-Recording Mixer), J. Michael Riva (Art Direction), Hal T. Hickel (Animation Supervisor), Gary Scalzo (Lighting Technician),