Marianne Kyle

Commander Marianne Kyle was an inhabitant of the Inferno Earth.

Biography
In the 1950s, Kyle was an officer in the British Army stationed at a military base near Leipzig in Germany. In 1959, she conducted a lengthy experiment interrogating Lethbridge-Stewart, believing him to be an agent of a foreign government. Along with James Lethbridge-Stewart she was one of the founder members of the Republican Security Forces. (PROSE: The Schizoid Earth)

She was one of the survivors after Eric Stahlmann's drilling project at Eastchester nearly destroyed her world. After capturing Koschei, they used him to try to escape to this Earth. Kyle became 's accountant for a time. The Master eventually destroyed the dimensional link between the two worlds, stranding Kyle from her Earth, and allowed her to escape to fight another day — as well as hoping she might make trouble for the Doctor at some time in the future. (PROSE: The Face of the Enemy)

Kyle joined UNIT and was promoted to general by 1997, operating from Geneva. She was a superior of Tsang in the Cortez Project, and instructed her to "destroy the aliens and their technology by any means necessary". (PROSE: Bullet Time)

Behind the scenes

 * Any future encounters between Marianne Kyle and the Doctor, as the Master hopes will occur following the events of The Face of the Enemy, remain unrecorded.