Falling Skies was renewed for a fourth season, which aired from June 22 to August 31, 2014.

[2] It was reported that Academy Award winning actress Mira Sorvino will appear in a major recurring role as a character named Sara.

Sara is described as, "a woman far removed from her former life as a graphic designer who is now dogged by death at every turn, yet she has never felt more alive, free or fearless.

A chance encounter with guerrilla fighter John Pope (Colin Cunningham) leads her to join the resistance and develop a strong personal bond with the outlaw-turned-warrior.

"[15] Harry Potter alum Scarlett Byrne who played Pansy Parkinson was also cast in the role of Alexis "Lexi" Glass-Mason as a new series regular.