An unnamed woman was one of the passengers seated in the middle section of OceanicFlight 815. She survived the crash along with around 70 other people, including the tail section survivors. She can only be seen during the chaos immediately following the crash. It is presumed that she died during the flaming arrow attack.
The character is one of much discussion, being the only guest star long unidentified by fansites. Usually, a credited actor/actress means that they were given a speaking role, but in this case there is no other character that could possibly be the credited woman.