Hossak

Hossak was a Time Lord in charge with the a fake temporal summit. She would do anything to make sure the temporal summit was successful, which included rewriting time to avoid any misunderstandings. This happened 3 time successfully, when the station the was created and the servitors were activated early, secondly when Flinkstab killed a dancer and finally when Narvin apparently killed another member. The last time she tried to rewrite time she tried to destroy the paradox of Romana on the station, but it failed when a competing time field of Romana's presidential TARDIS. (BFG:Square One