Lisa Berger, formerly known as Lorraine, is a shy looking girl who first appeared in the Season Sixteen episode, "Butterballs", where she was seen at the school assembly with Bucky Bailey's Bully Buckers. During the assembly, the spokesperson for Bucky Bailey's Bully Buckers bullied her by asking if kids say things like "Nice pants, why do you wear them up to your tits?". Lorraine also appeared in "Cartman Finds Love" in the background when Token Black was pushing Nichole on the swing.
Lisa has messy brown hair. She wears orange pants, a purple shirt, and black shoes. Her pants are worn above the waist. She has freckles on her face and also wears yellow glasses.
- "Butterballs" - Seen being made fun of by the Anti-Bullying Counselor at the school assembly.
- "Cartman Finds Love" - Seen in the background on the playground eating.
- "World War Zimmerman" - Seen performing as a cheerleader at the school assembly.
- "The Hobbit" - Becomes the most popular girl in school, and Clyde Donovan's girlfriend, after Wendy uses Photoshop to "improve" her appearance, despite doing so to try and prove a negative point to Butters Stotch about its deceptive effects.