Esther Ollander

 was a slave in the Dalek war. She talked to Susan Mendes about how the Daleks allowed her to have a funeral for her father because of Susan. She was head of hospitality. They conditioned her to forget her first name, Ester. (AUDIO: The Fearless: Part 2) She then tried to help Kenzie and Avers overthrow the Daleks. (AUDIO: The Fearless: Part 3)