Miss Sarah ('Sally') Brass, Mr. Brass's obnoxious sister and clerk. She is the real authority in the Brass firm. She is occasionally referred to as a "dragon", and she mistreats the Marchioness. Quilp makes amorous advances towards her, but is rebuffed.
Mrs. Jarley, proprietor of a travelling waxworks show, who takes in Nell and her grandfather out of kindness. However, she only appears briefly.