Jennifer Parker is a supporting character in the Back to the Future franchise. She is the love interest, girlfriend and future wife of Marty McFly. In the original timeline, due to Marty's strained relationship with his parents, Jennifer acts as her boyfriend's confidente and emotional support, alongside Emmett "Doc" Brown. She is also one of the few individuals outside of the Brown family to know of Marty and Doc's time traveling adventures.
In the year 2015 Jennifer and Marty had married and where the parents of two children, a son also named Marty and a daughter named Marlene.