Tinia is a short little girl. She has dark brown hair, wears a pink long-sleeved jacket, a red skirt and black Mary Jane shoes.
On the outside, she may be a sweet and cute girl, but on the inside she is mischievous and manipulative. She doesn't seem to know why, but she does it. An example of it was shown in "Patients" where she made Clarence do tasks for her only to frame him for stealing her candy, therefore, making Clarence taking the fall of the blame while she gets no such comeuppance of her troubles.
The gallery for Tinia can be found here.