Sue is the younger sister of Scott Scanlon, whom she lost in an accidental death. Almost a year later, Sue starts high school at West Beverly. She wears church clothes, but changes to a more punk look at school, running with a "bad crowd" and smoking. Sue has an unrequited crush on her brother's former best friend, David Silver.
In 1992, Sue starts high school and is paired with a senior buddy - Brenda Walsh. Sue doesn't really feel like connecting with Brenda and mostly spends her time with the punk crowd at school, ditching class and hanging out. Brenda surmises that Sue is acting out because of her brother's untimely death.