Kate has light brown fur with a light pink tail, nose, paws, and feet. Her inner-ear is slightly darker. She has black eyes and whiskers.
From what is said and shown, Kate is kind towards her younger brother and sister and often plays with them.
In a drawing by Nora, Kate is shown wearing a pink sleeve-less dress.
- She is the only mentioned older sister in the series.
- She makes a physical appearance in the book, Noisy Nora.
- She is in third grade.
- It is unknown why Kate never appeared in the series but in Nora's family drawing, not even during weekends or vacations.