Wo Fat is the brilliant and ruthless adversary of Hawaii Five-O's Steve McGarrett.The character makes his first appearance in the show's two-hour, TV-movie pilot (later re-edited to a two-part episode of the series). Wo Fat, an intelligence operative for Communist China, is abducting U.S. agents and subjecting them to the cocoon. The agents are deprived of their senses while laying in a pool, warmed to body temperature. After several hours, they crack and spill their guts, as U.S. spymaster Jonathan Kaye explains it to McGarrett. Afterwards, the agents are killed in ways to make it appear to be an accident.One of the agents was Hennessey, a close friend of McGarrett's. It is this incident that puts McGarrett in opposition to Wo Fat for the first time. Eventually, McGarrett becomes part of a plan hatched by Kaye. The lawman will be programmed to impart false information that will cause chaos for Chinese intelligence. This means that Wo Fat must be permitted to leave Hawaii and return to Beijing.Wo Fat, however, survives this failure and continues to bedevil McGarrett and Five-O. On one occasion ( The Jinn Who Clears the Way ), McGarrett finally catches Wo Fat who is holding, ironically, a U.S. passport. Asked if that's his true passport, Wo Fat replies: I profess to be a citizen of the world. But for the moment, I am as my passport declares. McGarrett observes Wo Fat can now be prosecuted for treason on top of his other crimines.McGarrett's triumph, though, is short-lived. Jonathan Kaye arrives and lets Wo Fat go. He is to be exchanged for a U.S. pilot who was captured while flying a spy plane over China. McGarrett slams the phony passport down on his desk at the end of the episode.During that same episode, there are indications that Wo Fat's superiors are becoming wary of the agent's sometimes bloodthirty methods. When next seen, (Presenting...In the Center Ring...Murder), Wo Fat has apparently gone rogue and is executing a plot to assassinate a Chinese official visiting Hawaii.Wo Fat's most elaborate scheme (Nine Dragons) was a plan where he would kill the Chinese leadership. conduct a coup and fire missiles at the U.S.The villain was finally captured at the end of the series (Woe to Wo Fat) and McGarrett finally saw Wo Fat in jail. However, at episode's end, we see Wo Fat managed to smuggle a file into his cell. It's implied that Wo Fat may yet return. Show less «