Vote for your favorite The Big Bang Theory episodes in our tournament

Guest Star: Yeardley Smith

  • The Einstein Approximation

    The Einstein Approximation
    Season 3, Episode 14 - Aired February 1, 2010

    When Sheldon's struggle with a physics problem keeps him awake for days on end, he decides to free his mind by taking a menial job. After failing to find gainful employment anywhere else, Sheldon starts work at the Cheesecake Factory with Penny.

    Appeared as Sandy

 Search for Yeardley Smith on IMDB