Le docteur (1991. Doctor Who Proms 2010 - I am The Doctor. DW 3x14 Time crash Vostfr Hors série. Angusrs's Photo Albums - Imgur. Doctor Who - The Official Site. Doctor (Doctor Who) "Doctor" is not the character's true name, which has been left unrevealed.
He adopts it as an alias for reasons undisclosed in the series itself. In later episodes of the new series, specifically under show runner Steven Moffat, story arcs surrounding events in the Doctor's future implied serious consequences in the event of the Doctor's true name being spoken, the nature of which is finally revealed in "The Time of the Doctor". Spin-off media offers the explanation that his true name is unpronounceable by humans.