Matthew Fox, Ed Harris pull out of 'World War Z'

And that's how the zombies win.

According to Digital Spy, "World War Z" has lost two of its actors: Matthew Fox and Ed Harris.

Brad Pitt will star in the film adaptation.

"Lost" alum Fox has pulled out due to a scheduling conflict with "I, Alex Cross." He had signed on earlier this month to play the role of a parajumper.

Meanwhile, Digital Spy said negotiations with Harris have broken down for undisclosed reasons.

The novel "World War Z," written by Max Brooks, is described as a recounting of the "apocalyptic and horrifying years that will make sure we never forget how close we came to total annihilation. Told from the perspective of numerous survivors from all over the world, from Denver to South Africa, Sydney to Yonkers, Malibu to India, 'World War Z' captures the sacrifices and, toward the end, the ingenuity of our race to defend and save our cities, towns, and villages from a plague that seemed virtually impossible to stop."

The movie adaptation stars Brad Pitt ("Ocean's 11," "The Curious Case of Benjamin Button") as the U.N. worker who collects the accounts. Mireille Enos (AMC's "The Killing") will play Pitt's wife, while James Badge Dale (HBO's "Pacific") will play a soldier who tries to warn everyone of the impending threat. French actress Julia Levy-Boeken ("Entourage," "Road Trip: Beer Pong") is also attached.

Matthew Fox, Ed Harris in talks for 'World War Z'

The list of zombie survivors grows as Matthew Fox and Ed Harris are the latest to be attached to director Marc Forster's "World War Z."

Matthew Fox

Deadline is reporting both actors are in talks to join, as is French actress Julia Levy-Boeken ("Entourage," "Road Trip: Beer Pong").

Fox, who wrapped up his role as the tortured Jack Shepard on ABC's "Lost" last year, will next be seen in "I, Alex Cross," the adaptation of James Patterson's novel starring Tyler Perry in the title role. Meanwhile Harris' last wide release was the historical drama "The Way Back," although he has several projects already lined up for this year and next.

Ed Harris

The novel "World War Z," written by Max Brooks, is described as a recounting of the "apocalyptic and horrifying years that will make sure we never forget how close we came to total annihilation. Told from the perspective of numerous survivors from all over the world, from Denver to South Africa, Sydney to Yonkers, Malibu to India, 'World War Z' captures the sacrifices and, toward the end, the ingenuity of our race to defend and save our cities, towns, and villages from a plague that seemed virtually impossible to stop."

The movie stars Brad Pitt ("Ocean's 11," "The Curious Case of Benjamin Button") as the U.N. worker who collects the accounts. Mireille Enos, who is currently playing police officer Sarah Linden in AMC's "The Killing," will play Pitt's wife, while James Badge Dale (HBO's "Pacific") will play a soldier who tries to warn everyone of the impending threat.