Hannah is the maid of the Trancy Household.
Appearance:
Hannah has rather tan skin with slanted bluish-purple eyes and wears purple lipstick. Her hair is a very pale violet-blue that extends far down her back, and the second half of it is braided. She is a rather busty woman, and wears a long blue and white maid dress with an accompanying plate-shaped maid cap.
Personality:
Hannah is loyal to her master, Alois Trancy, and is quite a mysterious woman. She seems to be quite a worried person, and is often seen with her head tilted down as a way of avoiding eye contact with others. She is quite obviously terrified of Alois, and is calm except for the moments in which he is speaking to her. In these moments, she is brisk, nervous, and will even tremble with fear.
(Source: Kuroshitsuji Wiki)