Susan Loughlin is the sister of Meg Loughlin. Having been badly hurt in the car accident that killed her parents, Susan walks with braces on her legs and also has braces on her arms. Unable to defend herself, she often relies on Meg to help spare her from the Chandlers. Susan is forced to watch as the group destroys her sister. Often, Susan is used as a bargaining tool for Ruth, in that Ruth can make Meg do nearly anything by threatening to harm Susan. Ruth also sexually abuses Susan. It is Susan who causes Meg to return to the house following her escape, in that Meg knows Susan will be severely hurt if she is left behind following Meg's escape. Susan is left alive in the end, and thankfully given to a foster family who loves her, but she is forever damaged.