The mad scientist with a messy hairdo and a lab coat;
The sinister goth-like dark magic -using Dark Lord who has evil plans of world domination, who likes to engage in maniacal laughter and who often complains about the incompetence of his henchmen;
The overweight, doughnut-eating cop who purposefully overlooks crimes;
The green pointy-eared alien invader in a flying saucer who plans to destroy/conquer Earth and who asks the first human he can find: "Take us to your leader!"
The uneducated hick (American) Southerner, a white trashredneck, playing the banjo in a rocking chair on the porch next to a rifle and with a big Confederate flag hanging in back of him;
The foul-mouthed U.S. Serviceman who is prone to engaging in domestic violence;
The fat German wearing a green pair of lederhosen, a bowtie, and a jaunty hat with a feather, carrying a beer stein in one hand and a frankfurter in the other (or possibly an accordion), who may also yodel;
The rich, snobbish Englishman/woman, wearing a monocle (if male), smoking a pipe or drinking tea, with a butler;
The very pale-skinned henchman (not necessarily affected with albinism, though this is sometimes the case such as in the movie Foul Play) who dresses entirely in white - example: Cain and Abel from The Matrix Reloaded;