Trelon

 was a Time Lord commander of the Tempest, a ship that acted as a decoy for the War Doctor to land on Asteroid Theta 12. He was in awe of the Doctor because he was his childhood hero. He wanted to escape from a Dalek pursuit ship and the Daleks to find him to buy more time for the Doctor. He was exterminated by the Daleks. (AUDIO: A Thing of Guile)