Captain America is a Marvel superhero who appears in Spider-Man-related animated series and crossovers, rather than being a Spider-Man character himself. He is Steve Rogers, a patriotic super-soldier known for his shield, leadership, and strong sense of justice. In Spider-Man stories, he often serves as an ally, mentor figure, or guest hero who helps Spider-Man confront larger threats. His role is usually to support the team, inspire courage, and represent the broader Marvel universe.