The Visionary

The Visionary was a Time Lord who predicted the annihilation of Gallifrey on the final day of the Last Great Time War.

Biography
She was present at a Time Lord meeting presided by Rassilon during the war, foretelling that Gallifrey would burn as she wrote in Gallifreyan onto a piece of paper with an ink pen.

She was last heard screaming "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. She, along with the rest of the Time Lords, were killed when the Eighth Doctor used the Moment to end the Time War once and for all. (DW: The End of Time)