Bertie Potts

Bertie Potts was a member of the Rulers of the Universe. He was a fan of River Song and created a clone of himself and hacked his clone's senses so he could experience River as she solved a mystery engineered by him in Mesopotamia. When River failed to give the Rulers of the Universe what they wanted, he lured the Eighth Doctor to their endless party instead. (AUDIO: The Rulers of the Universe)