Kharis

 was a humanoid from a planet that worshiped the Eternal Machine.

Kharis owned a clock shop. On the day that Aimarrh was to be brought to the Machine, the Third Doctor and Sarah Jane Smith visited Kharis' shop. They asked him many questions about the planet's religion. Kharis was disconcerted when the Doctor pointed out that only those who were poor were chosen to travel to the stars. (PROSE: The Discourse of Flies)