Season 4 of the Showtime drama Homeland begins Sunday — and it begins with a very significant change. Claire Danes is back as Carrie Mathison, the gifted but troubled CIA agent with bipolar disorder. But her co-star for the first three seasons, Damian Lewis, who played former prisoner-of-war and suspected traitor Nicholas Brody, is not.
When we left Homeland, at the end of what ultimately was a disappointing season, Brody and Carrie's dreams to escape politics and run off together had died — along with Brody, who was hanged in Tehran by an angry mob as Carrie watched helplessly. But Carrie was carrying his unborn child.