Lastly and also the first avenger before Iron Man, Hulk, and other heroes were born. There was the american hero Captain America. Captain America: The First Avenger was the last hero to be shown before the avengers assembled. It had a good origin story Steve Rogers that want to join up in the army to serve his country until he participate on the super soldier to become Captain America and fighting off the Red Skull. Chris Evans (that also played as Johnny Storm aka The Human Torch from Fantastic Four) now plays as another superhero as Captain America. Watch my review if you want to hear more.