Hatcher made a much-discussed guest appearance on a 1993 episode of "Seinfeld", in which her character, Sidra, breaks up with Jerry because she believes Jerry sent his friend Elaine into a sauna to ascertain if Sidra's breasts were natural or enhanced by surgery. The episode concluded with Sidra saying to Jerry "they're real, and they're spectacular" as she left Jerry's apartment. Hatcher returned to play Sidra in brief scenes in two subsequent episodes: "The Pilot", the fourth season finale, and "The Finale (Part 2)", the series finale.