Anna is the younger sister and rival of Nina. Being the extrovert and flirtatious contrast to her brooding and serious older sister, she usually enters the King of Iron Tournament to try to beat and/or make peace with Nina.

Anna Williams

Anna is the younger sister and rival of Nina. Being the extrovert and flirtatious contrast to her brooding and serious older sister, she usually enters the King of Iron Tournament to try to beat and/or make peace with Nina.

All data from the awesome folks at Marvel.