Dr. Chaos

Dr. Chaos is a male supervillain who is basically mentally insane, but still perfectly sane. His arch nemesis (and secret lover), Magnito has the house from Iron Man perched on top of a hill overlooking DC. Dr. Chaos has a love for military style installations and his base is a gigantic underground bunker/house/armory/lab underneath the entire city of Washington DC. He is also super duper handsome.