Jatt

One of the Sisters of Plentitude, she monitored the experiments on the humans in the secret Intensive Care Unit beneath the Hospital on New Earth. Trying to escape from the infectious patients, Jatt became their first victim when a patients hand brushed against her face, spreading its numerous viruses into her immunity-free body killing her instantly. (REF: Doctor Who: The Encyclopedia)

Sister Jatt was a member of the Sisters of Plenitude. She came and lived on New Earth in the city of New New York. She worked in the Hospital outside of New New York. In the year 5,000,000,023, she was responsible for looking after the Face of Boe, and showed the Doctor to him. She tried to prevent Lady Cassandra (disguised as Rose Tyler) from releasing the Flesh, but Lady Cassandra succeeded and the Flesh touched Jatt, causing her to fall to her death. (DW: New Earth)