I might as well throw out 10 antagonist ideas as well:   :-)<br/><br/><br/>-Rebel Thought entity interface (sane or insane)<br/>-Government Conspiracy (ancient or novel, nationalistic or international)<br/>-Sentient Computer (possibly another DTE interface to communicate with the internet)<br/>-Generic Sephiroph Clone (created by Haruhi or any number of reality altering factions, possibly even a time traveler)<br/>-Great Old One (Maybe even been around since the dawn of the universe)<br/>-Mad Inventor (possibly with robot sidekick)<br/>-Haruhi's family doctor (perhaps sensing something strange with that girl)<br/>-Chance/Nature Itself<br/>-A G/god (Ameterasu, Raiden, Hachiman, Su Wukong, Baron Samedi, Set, Hecate, Orochi...)<br/>-A jealous high school student with a book of spells.<br/><br/>Actually, I could probobly make a list of antagonists just on high school students, but 2/3ds of that list can already be going to high school.<br/>