The character played by [[Maria O'Brien]] is credited as Mary, but more than once, Jack Bauer seems to call her Paula. There is another Mary amongst the characters, this one played by [[Janel Moloney]], and there is no reason one cannot have two characters with the same first name, as this occurs in real life, but perhaps both Marys were confused with each other, and the one played by Maria O'Brien was referred to as Mary, because of the similarity of her real name to this character name.