6. Astrid Peth
Oh Kylie Minogue. Not only a beautiful addition to the Whoniverse, but a very popular one. For those who dont remember, Astrid Peth a humanoid from the plant Sto was a waitress aboard the Titanic in the Christmas episode the Voyage of the Damned. Her dreams were to travel the Universe, to travel all of space and see as much as she could. And in a manner of speaking she did but only from afar. That was, of course, until The Doctor came into her life. A stolen trip to Earth gave her a peak of what could be, but the best was yet to come. Our favourite Time Lord offered her the opportunity to do everything that she had always wanted to do. He gave her the gift of all of time and space, and that is a gift that she was grateful to accept. And then she was unlucky. In an attempt to save the planet she had not long visited, in an attempt to save the lives of every person on board the Titanic, Astrid Peth gave her own, by driving the evil Max Capricorn off the edge of a platform into the engines of the ship. Astrid had been given the chance to have everything she ever wanted, before it was unluckily taken away.