Lea Thompson did really well as Lorraine Baines McFly in Back to the Future.
In the original 1985 timeline, she was an alcoholic yet loving mom in a not so rich household.
When Marty meets his future mother in 1955, he is horrified to know that she isn’t that innocent and she has the hots for him.
When Marty accidentally makes the now 1985 better, she has lived a very successful life.
She’s even old enough to live in the future 2015. Much older but still pretty sweet.