History:
A Gallifreyan Time Lord and adventuring time traveller, travelling the universe to right wrongs. Able to regenerate when at the point of death, he has now gone through several incarnations.
To date the Doctor has gone through nine personas, and is currently in his tenth. He almost always travels with companions he has met in his journeys, from his grand-daughter Susan at the start, through school teachers Ian and Barbara, Scots piper Jamie McCrimmon, reporter Sarah Jane Smith, the savage Leela, fellow Time Lord Romana, teenage rebel Ace, and the shapeshifting Frobisher.
His most common mode of transport is the TARDIS, his larger-on-the-inside-than-out time machine, although when on late twentieth century Earth he has made use of a yellow roadster, Bessie, provided to him by UNIT, a taskforce dedicated to protecting Earth against alien threats. This taskforce was originally commanded in Britain by Brigadier Lethbridge-Stewart, probably the Doctor's greatest ally.
In his 900 odd years, he has loved, lost and let go of friends, enemies and lovers alike leaving him very much a lonely man, travelling to out run his pains and prevent others from feeling pain and guilt like he carries.
