Blackhole
this Imperial agent worked with Darth Vader, shortly after the Battle of Yavin, to locate Alliance bases for extermination. His exact appearance was never known, for he used a distorter to project his image. He appeared as a human-shaped cloud of stars. Blackhole was, in reality, one of the special agents known as Emperor's Hands, and he was given widespread access and control over the Imperial HoloNet in order to send out his image signal. This allowed him to seemingly appear and disappear at will, instilling a sense of paranoia and fear in the officers he investigated. A former member of the Prophets of the Dark Side, he was later placed in charge of Imperial Intelligence by Emperor Palpatine himself. It was rumored that Blackhole was once a Senatorial page who was taken under Palpatine's tutelage. Others believed he was a functionary who worked in the Jedi Library on Coruscant before being seduced by the Dark Side of the Force. Blackhole's true appearance was that of an extremely frail old man, whose only movements were assisted by a Neimoidian mechno-chair device similar to that of the B'omarr Monks. In the wake of the Battle of Endor, Blackhole simply disappeared, and was never heard from again. It was later revealed that Blackhole was none other than the so-called Mage Lord, Cronal. After Kyle Katarn defeated the Dark Jedi Jerec on Ruusan, it was also discovered that Blackhole had been the driving force behind the development of Gorc and Pic, the two Dark Jedi "twins" who served as part of Jerec's band.