Esther Malkin

 was a leader of a Space Security Service rescue team for a ship trapped on Mira. She was concerned when the Doctor appeared after seeing the remains of the massacre of the ship. She didn't want to leave the information on ship when learning of the threat of the Visians. She later chastised Anya Kingdom for not filing the report on time. (AUDIO: Buying Time) She later went with Mark Seven to see the chief officer, but found him dead. She was later involved in a Gorlan attack and helped in evacuating the headquarters. She was witness to the temporal disturbance caused by George Sheldrake. (AUDIO: The Wrong Woman)