Edward Repple

Repple was a Clockwork man, who believed himself to be Shade Vassily, the exiled ruler of Katuria. He was in fact a Clockwork droid, created by the real Shade Vassily. Along with the Ninth Doctor and Rose Tyler, he was able to stop the real Shade Vassily from escaping Earth.

Despite being Clockwork, Repple felt human. The Doctor showed him that he didn't have to have blood to be human, and encouraged him to enjoy life on Planet Earth. Rose Tyler asked Repple to come visit her in eighty years time.