Xing

Madame Xing was a being encountered by the Eighth Doctor on Espero.

Biography
Roberto told the Doctor that Madame Xing was an offworlder to Espero. He said that no-one knew her true name, because it was unpronounceable.

Xing claimed to be a viropractor, specialising in the use of viroids to alter and enhance cognitive development and memory. She helped the Doctor restore the memories of his arrival on Espero. She then offered to restore the remainder of his memories, to which he refused. (PROSE: Halflife)

The Doctor later sent K9 to Espero to find Madame Xing once he had discovered why he had lost all of his memories. (PROSE: The Gallifrey Chronicles)

Appearance
Xing wore all black clothes, with a hood hiding her head, and black gloves covered her fingers. Her voice sounded to the Doctor like it had been augmented by machinery. (PROSE: Halflife)