Panthea Vyne
From Tardis Wiki, the free Doctor Who reference
Panthea Vyne was an archivist at the Depository. She helped Bernice Summerfield find out what was happening to the books. (AUDIO: The Diet of Worms)
Behind the scenes
Although Panthea's surname is clearly pronounced "Vyne" by both her and Benny, her surname is listed in the credits as "Vyse".