Avishka Sangakkara

 was a scientist who was in charge of a space probe. The Eighth Doctor asked if he needed help find it when the probe went missing. He was worried when the Doctor told him something was happening to the probe. (AUDIO: The Eight Truths) He tracked the stellar manipulator to the old Olympic village. He was possessed by the Eight Legs until the Doctor undid the possession. (AUDIO: Worldwide Web)