Karen Stohlman is a school friend of Maryellen Larkin.
- Name: Karen Stohlman
- First Appearance: The One and Only
- Unnamed Older Brother
Karen has long brown hair, and is a ballerina. She likes for everything and everyone to be the same. She usually has brand-new clothes, as her only sibling is an older brother. Karen considers her brother- and all boys except Davy- to be a pain.
Though Karen lives in a different neighborhood than Maryellen, she sees her at school and is in the same Girl Scouts Troop.