- Movies he's appeared in: We've seen Tony Stark / Iron Man in Iron Man, Iron Man 2, and The Incredible Hulk.
- What you need to know about him: Since he's already had two of his own movies, Iron Man has the most onscreen history of all the Avengers. Tony Stark was just your average arrogant billionaire engineer, until he got some shrapnel lodged in his chest. To keep the obtrusion from killing him, he created an Iron Man suit, which flies and does other cool stuff. Oh, and he's also romantically involved with his assistant Pepper Potts (Gwyneth Paltrow).
Photo courtesy of Paramount Pictures