As a human, Tess was of average height and build, and was notedly attractive. ibl She had fair skin and long, pointy ears, typical of all humans.

In both forms, she has light blonde hair, blue eyes, and wears a green, low-cut, midriff-length jacket, with its long sleeves rolled up to her Human elbows. She wears blue denim short shorts, with a brown belt and parts of her underwear exposed at the hips. Accessory-wise, she wears blue fingerless gloves.