Erica

In mid-1985, during the box office domination of Back to the Future, Mike and Eleven developed a romantic relationship, as did Max and Lucas. The heroes and heroines of previous seasons lead seemingly normal, although a year after the defeat of the Mind Flayer, things are not at all what they seem in Hawkins, Indiana. The city has a new leader, the morally corrupt Mayor Kline, whose administration supported and presided over the construction of the new Starcourt Mall. As the Fourth of July approaches, strange things begin to happen: Lucas's sister Erica discovers a mysterious new threat, and a lifeguard at the town pool suddenly disappears, triggering fear in those who still remember the events of the previous year.

Meet Erica, Lucas' younger sister who will play a bigger role in the next season.