"The Doctor" is a renegade Time Lord from the planet Gallifrey. In his first incarnation, he flees from Gallifrey in a stolen TARDIS. He eventually lands on Earth, becoming very fond of the Earth and the human race, being championed the Earth's greatest defender and even being appointed as the President of the planet. The Doctor often travels accompanied by friends, human and otherwise, who help him in his endeavors. For a long time, the Doctor believes to be the last surviving Time Lord after Gallifrey's destruction in the Last Great Time War, something that deeply affects him. However, he later discovers that Gallifrey has not been destroyed but hidden in a pocket universe instead. The Doctor has a granddaughter, Susan Foreman, and in his Eleventh incarnation, he marries River Song.