Dawn 726-Alpha Continua
From Tardis Wiki, the free Doctor Who reference
Dawn 726-Alpha Continua (or Dawan) was a robot guardian devised by Rassilon and used by the Time Lords to repair tears to the Space-Time Vortex that they made. Dawn was connected to the Matrix on Gallifrey from where she was directed. When she encountered the Eleventh Doctor and his TARDIS in the Vortex she came to realise that the link was gone, her memory files had become corrupted and she had no purpose. The Doctor managed to enthuse Dawn about her new freedom and encouraged her to explore the whole of time and space starting at the very beginning in a brand new squeaky-clean cosmos. (COMIC: Dawn of Time!)
