Bess Carstairs was the mother of Jake and Vienna Carstairs. She was also the wife of Brian Carstairs with whom she co-owned a hotel. She was invited to the Chelsea 426 flower, show she and her children went. But her husband could not go, instead the Doctor who was a guest at their hotel went with her. At the show she (among many other people) was infected with the Rutan virus and forced to fight when the Sontarans invaded Chelsea 426. She survived this and was later freed when the Doctor released oxygen in the air killing the Rutan Virus. after she was cured she could not remember anything from when the virus was in control of her. (NSA: The Taking of Chelsea 426
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