Vibax (The Last Days of Freme)

A female incarnation of the Time Lord scientist Vibax worked with the War Room.

Rassilon threatened Leela that unless she cooperated with the War Room, he would hand her over to Vibax to experiment on her however she saw fit. Vibax supplied a planet killer device for the Eleventh General, Veklin and Leela to use to destroy Freme. (AUDIO: The Last Days of Freme)

Vibax was eventually killed in an explosion engineered by Cato Kelgoth as part of his revenge against the Eleventh General and Cardinal Ollistra. (AUDIO: The Passenger)