A Background Actor, also known as an extra, is a performer who appears in non-speaking roles in film, television, and commercial productions. Their job is to add realism to scenes by portraying everyday people in the background, such as pedestrians, diners, or office workers. Background Actors help create a believable environment but do not have lines or interact directly with main characters. While the role requires reliability and patience, it can be a valuable way to gain on-set experience and network in the entertainment industry.