'3rd Rock from the Sun': Where Are They Now?
Joseph Gordon Levitt French Stewart Kristen Johnston John Lithgow And Jane Curtin Star In
3rd Rock from the Sun starred John, Lithgow, Kristen Johnston, Joseph Gordon-Levitt, Jane Curtin, and French Stewart as a crew of aliens living incognito in Ohio and adjusting to life on Earth. The show ran for a total of six seasons and 139 episodes. Getty Images