Natacha Antila was a Russian physician sent to assist the scientific group investigating the "erratics" in Siberia. She was put in charge of the infirmary tent, where she tended to patients. Before they left the camp, Antila gave Connor Temple and Abby Maitland a thorough medical examination, in order to make sure that they both had a clean bill of health. In the end, she says goodbye to the British team, as they leave on a helicopter. Afterwards, she presumably remains at the research outpost. (Extinction Event)