Bill is shown to be a anthropomorphic Badger or a dog, wearing a blue jacket with a yellow shirt under it, a big red bowtie, light gray pants and dark blue shoes.
Rupert Bear - Leader/Best friend
Podgy Pig - Best Friend
Algy Pug - Best Friend
Ottoline The Otter - His Girlfriend/Future Fiancée
Fox twins (Freddy, and Ferdy) - Bullies/classmates/Rival friends
Mrs. Badger - His Mother
Toby Badger - His Young Little Brother
- Bill had appeared in more adventures with Rupert then with the others.