Claire Danes Carrie Mathison Actor, Producer Mandy Patinkin Saul Berenson Actor Elizabeth Marvel President Elizabeth Keane Actor Linus Roache David Wellington Actor Maury Sterling Max Piotrowski Actor Jake Weber Brett O'Keefe Actor Morgan Spector Dante Allen Actor James D'Arcy Thomas Anson Guest Star Dylan Baker Sen. Sam Paley Guest Star Mark Ivanir Ivan Krupin Guest Star Costa Ronin Yevgeny Gromov Guest Star Sandrine Holt Simone Martin Guest Star Ellen Adair Janet Bayne Guest Star Catherine Curtin Sandy Langmore Guest Star Peter Vack Clint Prower Guest Star William Popp Stein Guest Star Howard Gordon Writer Alex Gansa Writer, Executive Producer Gideon Raff Writer Lesli Linka Glatter Director