Attar

Attar was an Ulla on the planet Xirrinda. He was a t-shirt salesman in an airport. When he heard about the Rain of Terror he raced to his settlement to warn his tribe, but found no one. Using the correct environment, The Doctor dimmed the lights and started a drumming inside the train car. This helped Attar remember the stories he had been told as a child. holding the machine that would kill the creatures. He helped to restore the original version of the song of his Ulla people so they could reactivate the machine. (NSA:  Rain Of Terror)