CinemaBlend Copy to clipboard The West Wing boasted a star-studded cast that has stood the test of time, with series regulars including Martin Sheen, Allison Janney and Robe Lowe. But many of the young actors who guest starred on the political drama, which aired for seven seasons from 1999-2005, went on to have phenomenal careers of their own, such as Elisabeth Moss, who played the youngest of President Jed Bartletâs three daughters, and Amy Adams, who helped the White House staffers after they were stranded at a farm in Indiana. With more than 150 episodes, The West Wingâs sets were graced by hundreds of actors, so itâs to be expected you might have forgotten that these future stars were among them.