The infamous 1980s computer hacker Karl Koch was heavily influenced by "The Illuminatus! Trilogy". Besides adopting the pseudonym "Hagbard" from the character Hagbard Celine, he also named his computer "FUCKUP", after a computer designed and built by that character. He was addicted to cocaine and became extremely paranoid, convinced he was fighting the Illuminati like his literary namesake. In 1987 he wrote a rambling seven-page "hacking manifesto of sorts, complete with his theories on Hagbard Celine and the Illuminati". The 1998 German motion picture "23" told a dramatized version of his story; Robert Anton Wilson appeared as himself.