Captain America: The First Avenger

"I don't want to kill anyone. I don't like bullies; I don't care where they're from."
-Steve Rogers (Captain America)

Thor

"I need a horse!"
                           -Thor

Iron Man 2

"Sir, I'm gonna have to ask you to exit the donut display"
                                                                                         -Nick Fury

The Incredible Hulk

"Me in a metal tube, deep underground with hundreds of people in the most aggressive city in the world?"
             -Bruce Banner

Iron Man

"I am Iron Man."
                          -Tony