Lotte Bergmann

 was an archaeologist who discovered a strange rock in Souther Sweden. She went on an archaeological expedition with Bernice Summerfield and the Unbound Doctor which was on the map from the surface of the rock. She wanted to find evidence of the Vrill. She believed in the Nazi Eugenics programme. She was very eager to discover what was in the temple underground. She wanted to use the discovery to help the development of the Third Reich. Thinking it was Vrill technology, she turned on the Cyberman's conversion unit on herself and her students. She was partially converted as a way to change peoples mind to have a quiet invasion. She inititated the Doctor's cyberconversion. (AUDIO: Übermensch)