The Hostess
From Tardis Wiki, the free Doctor Who reference
The Hostess was the presenter of the Incredible Power Game in 1984. She kidnapped people to partake in the gameshow to collect Power Gems for her ship. She kidnapped Vislor Turlough and Tegan Jovanka for this task. The Fifth Doctor thought that she was Kamelion, which was partially true as she was using him as an avatar. (AUDIO: Power Game)