Marianna

Marianna was a Time Lady who once owned the Doctor's TARDIS.

She was imprisoned inside it after attempting to find the Point of Stillness. She was able to do Block Transfer Computation in her head. She spent her time painting. She claimed to have created Flutterwings. (AUDIO: The Abandoned)

Behind the scenes

 * Marnal had been earlier stated to be the previous owner of the Doctor's TARDIS in PROSE: The Gallifrey Chronicles.