Meedla
From Tardis Wiki, the free Doctor Who reference
Meedla was a Shrazer who lived on Quinnis. She first appeared to Susan Foreman as a young orphan girl, and followed her after she saw the TARDIS arrive. Later her true nature was revealed - that she was a Shrazer that fed on bad luck - and the people of Bridgetown had to fight against her. (AUDIO: Quinnis)