Unknown Female Rabbit is an unnamed character who made her first appearance in the episode "World Girls". She was seen throughout the World Girl World mall along with her sister Unknown Female Rabbit (Number 5). During the opening to the episode "D.W. on Ice" she was seen with her whole family. Her father Unknown Male Adult Rabbit (Number 4) spoke in French to Arthur, which means her whole family is likely of French decent. She has never spoken in any of her appearances.