Alonso (Maker of Demons)

 was the leader of the people of Prosper. He was descended from Gonzalo and told the Seventh Doctor and Melanie Bush what had happened in the last 100 years. He helped to try and find Ace. Later the Doctor discovered that he was also Caliban the leader of the Mogera. He and his ancestors were playing both sides as they thought that they wouldn't survive on the planet and made the Mogera monsters. He used myth of the Doctor and Mel to conduct this. He wanted to create a superior race. (AUDIO: Maker of Demons)