Boolin

 was a physician who was treating the Tsarina's son. He thought that his patients robotic parts were rejecting the human parts. (AUDIO: Tsar Wars)

When he escaped through a wormhole, he crashed an lost his memory. When the Fourth Doctor met up with him he remembered his true life. (AUDIO: The Broken Crown)

After falling into the world inside the Skishtari egg, he became the magician and sent Andrewon a mission to find the magic lamp. (AUDIO: Aladdin Time)