The background cast (or extras) of Lost are those actors and actresses who portray the roles of minor background characters (i.e. nonspeaking). The beach background extras for Lost are, generally, inexperienced actors or non-actors. Lost is notable in that the background cast for roles on the island (beach camp, Others' camp and so on) remain relatively constant, as recurring roles. The most commonly known extras are listed in the sections below, separated in groups (middle section, tail section, freighter and the Others).