Molly Foster
Molly Foster was the daughter of Paul and Hannah Foster, and the younger sister of Lisa Foster. When her father died in a car crash Molly was very upset, and continued to have nightmares about the event for an entire year. Molly helped guide a version of her father from an alternate Earth into N-Space. This version of Paul had survived the car crash, but lost his wife and daughters. Molly hid her father in a play-house in the garden, and brought him peanut butter sandwiches and clean clothes.
When her father was eventually discovered by the Fractures, Molly and the rest of her family fled to the Tower of London with Clara Oswald. When the Twelfth Doctor reopened the Void, pulling the Fractures back inside, he decided to let the alternate Earth version of Paul stay with his family in N-Space. (COMIC: The Fractures)