Cronal

Agent Blackhole was a mysterious Imperial Intelligence agent who collaborated with Darth Vader after the Battle of Yavin to locate Rebel Alliance bases. Blackhole's exact appearance and identity remained unknown; to those he spoke to, he appeared only as a human-shaped cloud of stars with the help of an image distorter. Agent Blackhole was one of the powerful Emperor's Hands, and given virtually unlimited access and control over the Imperial HoloNet. The Blackhole trooper legions carried out Agent Blackhole's most well-known exercises of power.

Agent Blackhole was a former member of the Prophets of the Dark Side, and was later hand-picked by Palpatine to be the head of Imperial Intelligence. It was rumored that Blackhole was once a Senatorial page taken under Palpatine's wing. Another rumor asserts that he was an assistant at the Jedi Library on Coruscant who was ultimately seduced by the Dark Side of the Force. In reality, Blackhole's an extremely frail old man, whose only movements were assisted by a mechanical chair designed by the Neimoidians.

After the Battle of Endor and Palpatine's death, Blackhole disappeared without a trace.