lowest form of life

Concerning human beings, the worst of the worst. spineless, backstabbing, two faced individuals, combined with the most modicum of intelligence. They often end up as middle managers of popular food chains, or jailers. They are useful at always having good information on who the scapegoat of the day is, but not to be trusted alone with pets or children. The most defining attribute of such a person is a natural illusiveness they dont seem even to be aware of. Its that person who seems well enough accepted by all and yet you feel ill at ease when they are around.