Sue was the troubled sister of former main character Scott Scanlon. She was initially assigned Brenda Walsh as a senior buddy, but spent more time doing wild things around school than trying to learn her way around the school. It was believed the family had been hit hard following Scott's accidental death.
Sue falsely accused Gil Meyers of trying to molest her with support from Andrea Zuckerman, almost ruining his career in the process. However, when Donna Martin and David Silver paid a visit to the Scanlon home, it was revealed that Sue's problems stemmed from not only her brother's death, but from the fact that Pam Scanlon's brother Henry had been the one who actually molested her.