darth desolous was a male pau'an dark lord of the sith who was expelled from the jedi order due to his violent nature and trained an army of fellow pau'an warriors to fight them, but ended up falling into a trap set by the jedi and perished in battle. his image would later be incorporated in the training simulations at the jedi temple on coruscant. in the video game "", starkiller, darth vader's secret assassin, was sent to the ruins of the jedi temple as part of his training, where he was forced to fight this projection of the long time-deceased sith lord. starkiller ultimately passed his trial and defeated desolous, crushing his body with a massive statue.