Pale woman (Gridlock)

The Pale Woman was a female member of an evolutionary variant of humans who lived in the Undercity of New Earth in 5,000,000,053 and was the daughter of Ma and Pa. When Ma and Pa were killed by Macra, she was troubled and went to Pharmacytown to get some Forget. The Doctor listened to her story and tried to stop her from taking the drug, she did so and forgot all about Ma, Pa and the Doctor. (DW: Gridlock)