modeling agent
n. A person who works at an agency that supposedly represents models, yet does nothing all day. A modeling agent normally never returns phone calls even when they say they will. They often live vicariously through the models they "work" for. They are often known as the biggest liars amongst society.
"I've called my modeling agent three times today and he hasn't called me back yet! Oh well, I'm not surprised. He's probably been running errands or something."