Harvey Grey
From Tardis Wiki, the free Doctor Who reference
Harvey Grey was a temporal scientist. He was involved in a temporal explosion, which was 12 years before River Song answered Thaddeus Grey's call. According to River, he was studying fixed points in time. Thaddeus kept hearing his voice. He was the inventor of the Vortex manipulator. (AUDIO: Archipelago [+]Loading...["Archipelago (audio story)"])
