Tony Stark - Robert Downey Jr.
James 'Rhodey' Rhodes - Don Cheadle
Virginia 'Pepper' Potts - Gwyneth Paltrow
Obadiah Stane - Jeff Bridges
Howard Stark - John Slattery
Justin Hammer - Sam Rockwell
Ivan Vanko - Mickey Rourke
Bethany Cabe - Kate Mara
Harold 'Happy' Hogun - Jon Favreau
Melina Vostokoff - Olivia Munn
Bruce Banner - Edward Norton
Elizebeth Betty Ross - Liv Tyler
General Thaddeus Ross - William Hurt
Emil Blonsky - Tim Roth
Leonard 'Doc' Samson - Ty Burrell
Samuel Sterns - Tim Blake Nelson
Rick Jones - Luke Perry
Thor Odinson - Chris Hemsworth
Loki - Tom Hiddleston
Odin - Brian Blessed
Frigga - Julie Christie
Balder - Josh Hartnett
Sif - Gemma Arterton
Jane Foster - Natalie Portman
Amora the Enchantress - Jessica Biel
Executioner - Jason Slatham
Volstagg - Abraham Benrubi
Hogun - Mark Strong
Fandral - Any Whitfield
Heimdall - Kenneth Branagh
Steve Rogers - Ryan McPartlin (1st Choice)
Steve Rogers - Jensen Ackles (2nd Choice)
Steve Rogers - Ryan Phillippe (3rd Choice)
Steve Rogers - Ben Mckenzie (4th Choice)
James Bucky Barnes - Joseph Gordon-Levitt
Margaret Peggy Carter - Emily Blunt
Baron Zemo or Red Skull - Mads Mikkelsen
James Falsworth - Wentworth Miller
Nick Fury - Samuel L Jackson
Wolfgang Von Strucker - Richard Fullerton or Malcolm McDowell
Natasha Romanoff - Scarlett Johansson
Agent Coulson - Gregg Clark