Showtime‘s flagship drama Homeland has added Laila Robins (Bored To Death) as a regular and Corey Stoll (House Of Cards) as recurring for the upcoming fourth season. Robins will play Martha Boyd, the U.S. Ambassador to the Islamic Republic of Pakistan, who is professional and put together, with a ship-to-ship voice and personality to match. Stoll will play Sandy Bachman, the CIA Chief of Station in Pakistan and a rising star in the agency’s firmament. The series’ fourth season begins production later this month in Cape Town, South Africa for a premiere this fall.

Homeland, from Fox 21, tells the story of Carrie Mathison (Claire Danes), a bi-polar CIA officer who plays by her own rules. At the end of last season Carrie, pregnant with the late Brody’s (Damian Lewis) baby, along with her mentor Saul Berenson (Mandy Patinkin), brought a significant and much-needed win for the agency and country at large. Season 4 will find Carrie assigned to one of the most volatile and dangerous CIA stations in the Middle East where she is back on the front lines in the war on terror. Along with Danes and Patinkin, Rupert Friend will return for the upcoming season, along with Nazanin Boniadi, who was recently promoted to a series regular. Homeland is exec produced by Alex Gansa, Howard Gordon, Gideon Raff, Alexander Cary, Chip Johannessen, Meredith Stiehm, Avi Nir and Ran Telem.