The Visionary

The Visionary was a Time Lady, or someone working for the Time Lords, who predicted the annihilation of Gallifrey on the final day of the Last Great Time War. By the end of the war, she was showing signs of insanity and constantly in a frantic state, spouting puzzling words and phrases which alluded to events due to happen in the future.

Biography
She was present at a High Council meeting presided over by Lord President Rassilon during the war. She foretold that Gallifrey would burn, as she wrote Gallifreyan symbols onto a piece of paper with an ink pen.

She screamed "Gallifrey falling...Gallifrey falls!" as Rassilion's plan to bring Gallifrey back failed at the hands of the Tenth Doctor, sending the planet back into the last day of the Time War. (TV: The End of Time)

Behind the scenes
Some fans have associated the Visionary with the Sisterhood of Karn, seen in the serial The Brain of Morbius. This is supported by an exchange in Gareth Roberts' novelisation of Shada, in which Skagra shows Romana how he learned the location of The Worshipful and Ancient Law of Gallifrey by kidnapping and torturing a member of the Sisterhood. When he shows an image of the Sister to Romana, Romana guesses that the woman is "a visionary", and Skagra does not contradict her. (PROSE: Shada)