Stef is a member of the Goonies, along with her best friend Andy, Brand, Chunk, Data, Mikey and secret love interest Mouth. Stef is the more sensible of the group, voicing her disapproval with certain plans and ideas, despite sometimes enjoying the thrill of the Goonies misadventures. After being captured by the Fratelli's in the Goon Docks caves, she was rescued by Sloth and Chunk. Stef is acrobatic and a good swimmer. She has an interest in collecting crabs and lobsters. 