Jano

Jano was the leader of the Council of Elders in the City on an unnamed Earth-like planet.

Biography
Jano was originally in favour of draining energy from the Savages. Later, he absorbed all the energy drained from the First Doctor into himself — giving him elements of the Doctor's personality and conscience, as well as causing him to believe that he himself was the Doctor. This eventually made Jano turn on the Elders, and help the Savages rebel.

After the energy-draining machinery was destroyed, Jano helped the two groups rebuild their world. (TV: The Savages)