Sin
Comic book character
Sin is a supervillain appearing in American comic books published by Marvel Comics. The character is the daughter of the Red Skull and an enemy of Captain America. Wikipedia
Fictional universe: Marvel Universe
Creators: Paul Neary and J. M. DeMatteis
First appearance: Captain America #290 (February 1984; as Mother Superior); Captain America #612 (January 2011; as Red Skull)
Species: Human mutate