K'anpo

K'anpo Rimpoche was a Time Lord who forsook Gallifreyan society to live as a Buddhist abbot on late 20th century Earth.

Biography
The Third Doctor met K'anpo Rimpoche, now the abbot of a Buddhist meditation centre in England with his assistant Cho Je. Unbeknownst to the Doctor and his companion at the time, Sarah Jane Smith, Cho Je and K'anpo Rimpoche were one and the same. Cho Je only existed either as a future projection of K'anpo Rimpoche or a creation of his mind, which Rimpoche used as a proxy while he hid from the Eight Legs. This did not deter the Eight Legs for long. When K'anpo was struck down by the Eight Legs possessing his own meditation students as human hosts, Cho Je faded into nothingness and then re-appeared, taking the place of K'anpo Rimpoche. He had regenerated. (TV: Planet of the Spiders)