Jess Ellmore

 was the daughter of Marge Ellmore and planned to be a singer. She was obsessed with fame. She accompanied Jackie Tyler when the Zaross invaded the labour camp. Jackie and Jess were taken by the Zaross to be rebels in a show. She worked out a way to stop the invasion by suggesting a different type of show. She wanted her big break so stopped the Tenth Doctor's plans. (AUDIO: Infamy of the Zaross)