Kuay

Kuay was a Dalek slave native to Anhaut. When the Daleks learned that Glax was making a movie about the Dalek invasion of her world which had taken place eight hundred years earlier, they had Kuay smuggle several of them onto the planet to exact their revenge. She followed Glax and Hok Nepo to the desert of Vaksh to stop them from learning how General Nor-Din defeated them. She destroyed Nor-Din's recorded message and summoned the Daleks, but contact with a crystal helmet broke their control over her. Realising that the helmet was the General's telepathic weapon, she used it to destroy her former masters at the cost of her own life. (COMIC: The Return of the Daleks)