Mr Mystery

Mr Mystery was a reader of the website Doctor Who?.

Biography
Following the Dummy Massacre of 2005, in which Rose Tyler left Earth to travel in the TARDIS with the Ninth Doctor, (TV: Rose) Mr Mystery responded to whoisdoctorwho.co.uk's request for sightings of Rose, saying only that he had seen Rose before, but could not say where or when, for he was Mr Mystery. (PROSE: The Doctor Was Involved in the Dummy Massacre)