Hart is a Caucasian woman of average build. She has shoulder length brown hair, and typically wore the uniform of a Belle Reve guard. This consisted of a khaki colored button up shirt with a golden colored badge on one side, and her name on the other. She also wore brown pants.
When the inmates broke out, she was quickly subdued. Killer Frost was ready to execute her, ignoring Hart's pleas for her life. "Tuppence" interfered, which lead to the villains fighting her instead of Hart.