Sarah Quinn is one of the main protagonists in Goosebumps 2: Haunted Halloween. She is the older sister of Sonny Quinn and the daughter of Kathy Quinn.
Goosebumps 2: Haunted Halloween
Sarah is an angry writer just like the grumpy, reformed R.L. Stine. She doesn't like anyone living in her house alongside with her family, Not even a dummy like Slappy.