Finicia Portillon (Varaxil)

"Finicia" was a Varaxil who impersonated the daughter of Claude Portillon. She was the twin sister of Lucern. She and her brother travelled to Earth's solar system in the 17th century in search of individuals with Odic energy, but they crash-landed on Vetter's Tor. She went back with the Eighth Doctor and Mary Shelley to find the witch that was trapped in a well, claiming that she and her brother were the children of Aleister Portillon. (AUDIO: The Witch from the Well)