Millicent Bulstrode

Millicent Bulstrode is a Slytherin student in Harry Potter's year at Hogwarts, sorted with the rest of her year in Harry Potter and the Philosopher's Stone. She was born into the pure-blood Bulstrode family, one of the Sacred Twenty-Eight, though she is a half-blood herself. She is black haired, with a heavy jutting jaw and a large square build that lets her physically intimidate smaller students, and by their second year she is bigger than Harry.