Mook
Minor, canon fodder villains in a TV show, like the foot clan in ninja turtles, the sword wielding henchmen of Oren in Kill Bill or stormtroopers in star wars. They don't have names and frequently don't have visible faces on screen. They exist to give the heroes someone to fight and show off their arete or powers.
The heroes cut down dozens of mooks as they fought their way into the villains sanctum.