" You've seen him, I know. He's the guy who stands there, or sits in a scene, and never says anything. If you need five tough guys to sit in a car waiting to blast somebody coming out of a building, he's one of the five guys in the car. If some criminals are waiting to be tried by a judge in a courtroom scene, he's waiting to be tried and he always looks guilty. He stands by elevators, he eats lunch in restaurants. In westerns, he is the guy at the end of the bar drinking rye. Once in a while he carries the rope at a lynching. "

― Charles Willeford , The Woman Chaser