Scarface and his tribe were rival red foxes in the books. His mate was not also named in the books and her personality is not so developed. Too many red foxes would have been confusing for viewers, so the animators made Scarface and his family distinguishable by making them "blue foxes" (more commonly referred to as "silver foxes", a melanistic color morph of the red fox.). Speedy was also unnamed. There are also one-episode characters that didn't appear in the books such as The Red Squirrels, Stoat and Scragg the Rat who is killed in his one-time appearance.