Captain America was the alter ego of Steve Rogers, a sickly young man who was enhanced to the peak of human perfection by an experimental serum in order to aid the United States war effort.

An intentionally patriotic creation, Captain America was often depicted fighting the Axis powers of World War II in a costume that bears an American flag motif. He is armed with an indestructible shield that can be thrown as a weapon.

After the war ended Captain America vanished, and was eventually discovered and revived from suspended animation by the superhero team the Avengers. Since then, Captain America has often led the team or been part of it.