Tanis is the youngest and the shortest of all the girls. She has blue eyes and she wears a plain white dress and wears a dark pink bow on her head, and the bandages on her head resemble a ponytail.
Because she is so young, Tanis has a childlike personality and is usually a very happy girl. As the youngest ghoul, she has the most innocent mindset.
- Her voice actress also voiced Bubbles in the Powerpuff Girls reboot.