Alexis Bledel

TV's former Gilmore girl, Alexis Bledel, will return to the smaller screen as a guest star in the two-hour ER series finale, airing April 2

Bledel will trade in her Traveling Pants for scrubs, playing Dr. Julia Wise, a new intern at County General, says People.

Other "names" on board for ER's series-ending salvo include George Clooney and Julianna Margulies (reprising their roles as Doug and Carol), and Susan Sarandon (playing a patient's grandmother), all three of whom will turn up in the March 12 episode.