Ernest Tiermann

Professor Ernest Tiermann was a scientist who owned Tiermann's World.

He lived with his son Solin, his wife Amanda and a household of robots. His wife was a cyborg and he really loved the Domovoi, the robot super-computer in his dream home. He was killed by one of his robots, Toaster. (PROSE: Sick Building)

The Fourth Doctor had previously met Albert Tiermann, a 19th century storyteller, whose father was named Ernest. (AUDIO: A Shard of Ice)