Since there will be no new episode of American Horror Story: Coven next week, due to the Thanksgiving holiday, FX has released a brand new featurette that explores the zombie army of Marie Laveau (Angela Bassett). Writer John Gray reveals that these undead soldiers are actually people who wronged Marie when they were alive, summoned to do her dirty work. Take a look at this behind-the-scenes featurette to see how these crew members tried to make their zombies different than the rest. The season returns Wednesday, December 4 at 10 PM ET with "The Sacred Taking".