In her earliest appearances, Roxie Marie spoke in a genial tone with just a touch of a suburban accent. Eventually she was established as Biff's niece, at which point her voice became a bit more gruff and her accent more thickly defined as someone who grew up in Brooklyn.
More specifically hailing from Canarsie, she attended a local school where she sat next to Kingston Livingston III in class. She can serve a "big sister" role with Elmo, sometimes annoyed that he "will get in the way" when he takes interest in her activities, which might include looking for a bug or trying to train a butterfly.
- A walk-around version of Roxie Marie appears in Sesame Street Live stage show tours including When I Grow Up, Let's Be Friends, 1-2-3 Imagine!, Super Grover! Ready for Action, and Elmo Makes Music. Roxie lasted much longer in the stage shows than she did on the actual series.