Miss Nanny is shown to be a sweet, down to earth woman with a good sense of humor. She pays attention to each of the Muppet Babies, and helps them with their problems. She is also very accepting of their personalities and quirks.
Miss Nanny loves making treats for the Muppets as well, and enjoys watching them put on shows.
Miss Nanny revealed in "The Great Muppet Sport-A-Thon" that she used to be a gymnast when she was younger. And as shown in "Frogs of a Feather" and "Upside-Down Day", Miss Nanny can do imitations of certain animals.
While her head and face are never seen, Miss Nanny is shown to wear a pink hooded sweatshirt over a dark purple dress with matching ballet flat shoes, with green tights with different prints depending on the episode.
- Miss Nanny's tights always have a pattern that corresponds to the theme of each episode. For example, in the episode "Sir Kermit the Brave", her tights featured dragons.