Trinkett
From Tardis Wiki, the free Doctor Who reference
Monitor Trinket was in charge of security on Archetryx. When the Daleks threw Etra Prime into a collision course with Archetryx, she helped the Sixth Doctor, President Romana and Dr Evelyn Smythe escape to Gallifrey. (AUDIO: The Apocalypse Element) She seems to have stayed on Gallifrey after these events as she was a member of Raldeth's attack group against the Sunari. (AUDIO: Appropriation)