City Administrator (The Sensorites)

The duty of the City Administrator on the Sense Sphere was to protect the one who ruled.

When the First Doctor and his companions visited the Sense Sphere, the City Administrator mistrusted the humans and plotted to kill them. He also took advantage of the situation to rise in power: he kidnapped the Second Elder and impersonated him, and when the Elder was killed, the City Administrator became Second Elder.

The advance in his position put him in a better position to hinder the Doctor's attempts to discover the cause of the poisoning of the Sensorites, believing the Doctor and the other humans were only misleading them, and would eventually cause the destruction of his people.

When his crimes were found out, he was banished to the outer wastes. (TV: The Sensorites)