The Doctor is a Time Lord: a 900 year old alien with 2 hearts, part of a gifted civilization who mastered time travel. The Doctor saves planets for a living—more of a hobby actually, and the Doctor's very, very good at it.
2024
1970
2018
2023
1975
1994
2015
2007
1966
1989
2020
2022
—
1985
