20. Whiplash Making An Appearance in Iron Man and Iron Man 2
In the first movie, Iron Man is chased by a jet fighter named Whiplash on the side. This is a reference to the comic character that is one of Iron Man’s main villains. It was also foreshadowing for Whiplash in the second movie, as he was written in and was portrayed by Mickey Rourke. He really gave Tony Stark a run for his money by creating his own Arc Reactor and armor to battle the billionaire playboy.