Yoyo is a blue tailless coyote who wears a red hooded shoulder piece with yellow bells attached to it. He doesn't seem to have visible ears.
Considered the greatest adventurer ever known, Yoyo is adventurous and joyful. He is a good friend, but also kind of nippy and stubborn. He likes to have fun, and loves to help people, but not like the way Doc Croc does. Yoyo mostly decides too quickly, and doesn't like to lose or quit.
- Yoyo was named after the yo-yo toy.
- Yoyo is J&D's favorite Simsala Grimm character.
- In every episode of Simsala Grimm, he often stops Doc Croc from saying all of his professions.
- Yoyo, along with Doc Croc, makes an appearance in ToonWorld All-Stars: The Movie.