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.
Unlike extras, who do not typically interact with principals, actors in bit parts are sometimes listed in the credits.
On the other hand, William Warfield, whose role as Joe, Queenie's husband, was also drastically shortened in the film from the stage original, did receive screen credit because he sang "Ol' Man River".
Bit parts are often significant in the story line and sometimes pivotal, as in Jack Albertson's role as a postal worker in the 1947 feature film Miracle on 34th Street.