Dr. KittenStein has long and messy hair, with the back half colored dark purple and the front half light purple, with a single spiral strand sticking out from the back. She also has lime green eyes and a lime green tongue.
Her outfit is that of a mad scientist. She wears purple lab googles, a black and green lab coat and shorts, dark red stockings, and purple gloves. Despite other's beliefs, KittenStein isn't exactly evil, or at least she doesn’t like consider herself to be. However, she is.