When digesting some unspeakable perversity/atrocity, Cartman ecstatically expels a long-drawn-out "Sweeeeet." Such moments are comic nirvana, delicious surrenders to one's baddest self. (Eric once worked a sweet "Titus Andronicus" revenge by feeding a hateful bully his parents!) Cartman is the self-appointed leader of "South Park"'s pack of cut-out kids. He's a master of manipulation that launches one demented scheme after another -- to line his pockets, wreak havoc or just to assume some impossible guise (and pretentious voice) of overblown power: "Respect my a-thori-ti," became his catchphrase when he played a macho traffic cop on trike. Powered by humankind's basest appetites, Cartman's truest voice emerges when -- in extremis -- the infantile curmudgeon wails "Maaaaaaammmmmm!!!"