Role in which there is direct interaction with the principal actors and no more than five lines of dialogue
In acting, a bit part is a role in which there is direct interaction with the principal actors and no more than five lines of dialogue, often referred to as a five-or-less or under-five in the United States, or under sixes in British television, or a walk-on part with no dialogue. A bit part is a credited higher billing than that of an extra and lower than that of a supporting actor. Wikipedia