Harnon Oan was a famous Vampire traitor. He was known for killing off other Vampire's and leading groups of Vampaneze to secret vampire base camps during the war after which he was killed. To this day his name has been disgraced among the Vampires, creating the phrase, "By the Black Blood of Harnon Oan". He shares this trait with Charna. His position of traitor was later filled by Kurda Smahlt.