Fliant Wormbleeder

Fliant Wormbleeder was an intergalactic estate agent. At one point he loses his handheld device on Earth, which a young boy named Robbie found. Thinking it was just a game console, Robbie unintentionally gives the ownership of the Earth to three different alien races. When the Doctor finds the source of the transmission of the King of Earth, he takes the device from Robbie and calls the owner. The owner appeared as a hologram and looks through his catalog to find suitable homes for the three alien races.